NRF51822 BLE4 2.4GHz Bluetooth 4.0 Module

7Semi ESP32-DEVKIT-E – ESP32 WiFi BLE Development Board with CP2102 USB-UART The 7Semi ESP32-DEVKIT-E is a compact and powerful development board built around the ESP32-WROOM-32E module, offering dual-core processing, onboard WiFi, and Bluetooth connectivity. Designed for makers, students, and IoT developers, it provides reliable wireless performance and plenty of GPIO pins to interface with sensors, displays, motors, and more. Whether you're experimenting with automation, creating smart devices, or building connected prototypes, this board gives you the flexibility and power needed to push your ideas further. With a CP2102 USB-to-UART bridge for easy programming, breadboard-friendly spacing, and multiple power input options (USB, 5V, or 3.3V), the ESP32-DEVKIT-E is built for smooth prototyping. It delivers a stable development experience with 4MB Flash, a PCB antenna, and support for protocols like SPI, I2C, I2S, ADC, DAC, and PWM - making it ideal for IoT, robotics, wearables, smart home projects, and low-power connected applications. Features: Powered by the ESP32-WROOM-32E module featuring a dual-core processor running at 160MHz for fast and efficient performance. Integrated WiFi and Bluetooth support enables seamless wireless connectivity for IoT and smart device applications. Includes multiple GPIO pins that allow easy interfacing with sensors, displays, motors, and other electronic components. Breadboard-friendly pin layout ensures easy prototyping and smooth development workflows. Equipped with a CP2102 USB-UART bridge for convenient programming and debugging via USB. Flexible power options including Micro USB, 5V, and 3.3V inputs to suit a wide variety of project needs. Built-in PCB antenna, 4MB flash memory, and compact, cost-effective design ideal for beginners and advanced developers alike. ESP32 Devkit Pinout Diagram:

7Semi ESP32-DEVKIT-IE ESP32 Development Board WiFi BLE The 7Semi ESP32-DEVKIT-IE is a feature-rich ESP32 WiFi BLE development board built around the powerful ESP32-WROVER-IE module. With its dual-core processor, 8MB Flash memory, and IPEX antenna connector for enhanced RF performance, this board is designed for smooth wireless communication and reliable IoT prototyping. Whether you're building connected devices, experimenting with sensors, or working on automation systems, the DEVKIT-IE gives you the flexibility and performance you need. It offers a breadboard-friendly layout, a CP2102 USB-to-UART bridge for easy programming, and multiple power options including Micro USB, 5V, and 3.3V. Developers can take advantage of the expandable GPIO pins and rich peripheral support (PWM, ADC, DAC, I2C, SPI, I2S, and more), making this board ideal for IoT projects, DIY electronics, and embedded system development. The combination of stable WiFi/BLE connectivity and robust ESP32 performance makes it a dependable choice for hobbyists and professionals alike. Features: Built around the ESP32-WROVER-IE module, offering dual-core processing power and reliable WiFi + Bluetooth connectivity. Includes 8MB Flash memory for more complex programs, data handling, and IoT applications. Equipped with an IPEX antenna connector, delivering improved RF performance and wider wireless range. Provides a CP2102 USB-to-UART bridge for simple, fast programming and debugging. Breadboard-friendly pin layout with extensive GPIO access for sensors, displays, actuators, and custom electronics. Supports multiple power inputs: Micro USB, 5V, or 3.3V, offering flexibility for various project setups. Ideal for beginners and professionals building IoT solutions, automation systems, wearables, and smart devices. Integrated PCB components and onboard buttons (EN & Boot) for smooth firmware upload and development workflows. ESP32 Devkit Pinout Diagram:

SmartElex HC-08 Bluetooth 4.0 BLE Module for Data Transfer The SmartElex HC-08 Bluetooth module is a compact and reliable HC 08 Bluetooth module designed for wireless data communication in embedded projects. It allows devices to exchange data over Bluetooth Low Energy, making it useful for applications that require short-range wireless connectivity with low power consumption. This BLE 4.0 module is ideal for students, makers, educators, engineers, and startups who want to add simple and efficient wireless communication to their electronics projects. The module integrates easily with popular platforms such as Arduino, Raspberry Pi, and ESP32, making it suitable for robotics, IoT devices, automation systems, and rapid prototyping. Its stable BLE communication helps enable applications like wireless sensors, mobile app control, and data logging. With straightforward serial communication and dependable performance, this wireless communication module simplifies the development of Bluetooth-enabled projects. Features: Bluetooth 4.0 BLE module for low-power wireless data transfer Enables simple and stable serial communication over Bluetooth Suitable for short-range wireless connectivity in embedded projects Easy to interface with Arduino, Raspberry Pi, and ESP32 Low power operation ideal for battery-powered applications Useful for IoT, robotics, automation, and wireless control projects

SmartElex TB-03F Bluetooth Module for Smart Lighting The SmartElex TB-03F Bluetooth Module for Smart Lighting is a compact and efficient Bluetooth 5.0 Low Power Module built on the TLSR8253 chipset, specially designed for intelligent lighting control systems. It conforms to BT 5.0 low power Tmall Genie Mesh standards, enabling direct control through Tmall Genie voice commands. Using star network communication and Bluetooth broadcast technology, this Bluetooth Module ensures quick and reliable response even when multiple lighting devices are connected. With low power consumption, minimal latency, and stable short-range wireless communication, the TB-03F is an ideal solution for modern smart lighting and IoT-based automation applications. Features: Tmall Elf can control it directly without using a gateway. SMD-22 Package Six PWM outputs. With on-board antenna, there is no need to create antenna. Brightness (duty cycle) adjustment range: 5%-100%. Factory preset 50% duty cycle for cool and warm hues. PWM output frequency: 1KHz. Supports numerous sleep modes, including deep sleep current as low as 0.4 uA. With a wall switch to switch color temperature. Support secondary development.

Cytron CM4 Maker Board for Raspberry Pi The Cytron CM4 Maker Board is a powerful and reliable development board built around the Raspberry Pi Compute Module 4 (CM4), designed specifically for Pro Makers, hardware hobbyists, educators, and embedded developers. With its wide input voltage range, convenient power button, and multiple boot options - including microSD, NVMe SSD, and CM4 eMMC, this Cytron board gives makers complete flexibility in how they build, experiment, and deploy their Raspberry Pi projects. It also retains essential interfaces like Gigabit Ethernet, USB 2.0 ports, HDMI, CSI, and DSI, ensuring compatibility with Raspberry Pi HATs and common accessories. Cytron enhances the standard CM4 experience by adding practical maker-friendly features such as on-board RTC (PCF85063A), Grove ports, Maker Port, 10 GPIO status LEDs, a piezo buzzer with mute switch, and dedicated push buttons. Whether you are creating IoT prototypes, robotics systems, dashboards, or long-running automation projects, the Cytron CM4 Maker Board offers stability, bigger storage options, real-time clock capability, and the expandability required for advanced Raspberry Pi development. Features: The Cytron CM4 Maker Board supports a wide input voltage range through a 7–18V DC jack or 5V USB-C, making it adaptable for various maker setups. Cytron includes a convenient hardware power button, allowing safe shutdown and easy startup without needing terminal commands. The board supports multiple boot sources, including microSD, NVMe SSD (2230/2242), and onboard eMMC on CM4 for faster and more reliable storage. Includes all essential Raspberry Pi features like Gigabit Ethernet, 4× USB 2.0 ports, HDMI, CSI camera port, DSI display port, and 3.5mm audio out. Equipped with PCF85063A RTC, enabling real-time clock functionality even without an internet connection. Cytron adds maker-focused extras such as Grove ports, Maker Port, 10 GPIO LEDs, piezo buzzer, and push buttons for quick prototyping. Pinout Diagram:

7Semi ESP32-C6 Mini Wifi Development Board Qwiic (DC-10116) The 7Semi ESP32-C6 Mini Wifi Development Board Qwiic is a compact and powerful wireless development board built around the modern ESP32-C6 chipset. It brings together fast Wi-Fi connectivity and flexible input/output options in a small Qwiic-compatible form factor, making it easy to use in projects that need smart communication and control. This board supports Wi-Fi 6 and Bluetooth/BLE connectivity, along with plenty of programmable pins for sensors, modules, and other components. With its Qwiic connector, you can plug in compatible accessories without soldering, simplifying prototyping and expanding your project quickly. Whether you’re building IoT devices, smart sensors, or remote controls, this ESP32-C6 board delivers reliable performance and effortless integration. Features: Powered by the ESP32-C6 chipset for modern wireless applications Supports Wi-Fi 6 for faster and more reliable connectivity Built-in Bluetooth / BLE support for short-range communication Qwiic connector for quick, solder-free sensor and module connections Compact form factor ideal for IoT and embedded projects Multiple GPIO pins for connecting sensors, actuators, and displays Compatible with popular development environments and libraries Suitable for smart devices, automation, and prototyping Pinouts

SmartElex PB-03 PHY6252(SSOP24) Bluetooth Module The SmartElex PB-03 PHY6252 Bluetooth Module is a compact low-power Bluetooth module designed for easy wireless communication in embedded and IoT projects. It allows users to add Bluetooth connectivity to their devices for data transfer, control, and monitoring without needing complex RF hardware design. This Bluetooth module is ideal for students, hobbyists, educators, and engineers building wireless prototypes, learning app-based control, or developing smart products that require energy-efficient Bluetooth communication. This module is commonly used in IoT systems, automation projects, wireless sensors, robotics, and consumer electronics where reliable Bluetooth connectivity is required. It works smoothly with development platforms like Arduino, Raspberry Pi, and ESP32, enabling quick pairing and integration for testing and deployment. With stable performance and low power consumption, the SmartElex PB-03 module is a practical choice for DIY electronics, classroom learning, and early-stage product development that needs simple and effective Bluetooth communication. Features: Low-power Bluetooth module for wireless data communication Supports easy pairing for app-based control and monitoring Compact design ideal for embedded and space-constrained projects Works with Arduino, Raspberry Pi, ESP32, and other microcontrollers Suitable for IoT devices, wireless sensors, and automation projects Beginner-friendly module for prototyping and product development

SmartElex Ebyte E73-2G4M04S1AX Bluetooth Wireless Module The SmartElex Ebyte E73-2G4M04S1AX Bluetooth Wireless Module is a compact BLE module based on the Nordic nRF52810 chipset, designed to add Bluetooth connectivity to embedded and IoT projects. It enables reliable wireless communication for data transfer, device control, and sensor monitoring without complex RF design, making it suitable for students, makers, educators, engineers, and startups working on Bluetooth-enabled systems. This Bluetooth module offers an accessible way to prototype smart devices, wearable tech, and automation solutions where low power consumption and stable connectivity are important. This nRF52810 module is ideal for IoT applications, robotics control, wireless sensor networks, BLE beacons, home automation systems, and smart consumer electronics. It integrates smoothly with development platforms like Arduino, Raspberry Pi, ESP32, and various microcontroller environments, allowing quick setup and easy firmware development. With dependable BLE communication and beginner-friendly integration, the SmartElex Ebyte E73-2G4M04S1AX module is a strong choice for prototyping, academic learning, and early product development where Bluetooth 4.2/5.0/5.2 compatibility and low power operation are essential. Features: Bluetooth module based on Nordic nRF52810 for stable BLE communication Supports Bluetooth 4.2 / 5.0 / 5.2 for wide device compatibility Low-power operation ideal for battery-powered and wearable devices Compact breakout board for easy integration into embedded projects Works with Arduino, Raspberry Pi, ESP32, and other microcontrollers Suitable for IoT systems, BLE beacons, automation, and wireless sensors

Seeed Studio XIAO ESP32-S3 Development Board Supports Wi-Fi & Bluetooth 5.0 The Seeed Studio XIAO ESP32-S3 Development Board is a compact and powerful ESP32 development board designed for IoT, smart home, wearable devices, and robotics projects. Powered by a 240MHz Xtensa 32-bit LX7 dual-core processor, it supports both Wi-Fi and Bluetooth 5.0 for seamless wireless communication. With its 2.4GHz rod antenna, reliable connectivity is ensured even in demanding environments. The board also features an ultra-low-power deep sleep mode, consuming as little as 14μA, making it perfect for battery-powered applications. Additionally, it includes lithium battery charging management, offering convenience for portable and energy-efficient projects. Features: Powerful MCU Board: Incorporates the ESP32S3 32-bit, dual-core, Xtensa processor working at up to 240MHz, mounted multiple development ports, Arduino and MicroPython support. Outstanding RF performance: Supports 2.4GHz WiFi and BLE 5.0 dual wireless communication, as well as 100m+ remote communication when linked with U. FL antenna. Elaborate Power Design: Lithium battery charge management capability, offering four power consumption models, including deep sleep mode with power consumption as low as 14μA. Thumb-sized Compact Design: 21 x 17.8mm, adopting the iconic XIAO form factor, appropriate for space-limited projects like wearable devices. Perfect for production: Breadboard-friendly and SMD design, with no components on the rear. Applications: Internet of Things Wearable devices Smart Homes Robotics Health monitoring Education Low-Power (LP) networking Rapid prototyping XIAO ESP32-S3 Development Board Pinout Diagram

Seeed Studio XIAO nRF52840 Module & Wio-SX1262 Kit for Meshtastic The Seeed Studio XIAO nRF52840 Module & Wio-SX1262 Kit is a powerful combination designed for modern IoT and wireless networking projects. Featuring the nRF52840 module and SX1262 transceiver, it supports BLE 5.0 and LoRa (862-930MHz) for reliable, long-range communication with low power consumption. This versatile kit is perfect for applications such as Meshtastic, environmental monitoring, sensor networks, asset tracking, and educational or innovative experiments. It's compact design and robust features make it an ideal solution for developers, makers, and students exploring connected device projects. Features: Versatile Microcontroller: Incorporate the Nordic nRF52840 chip with FPU, working up to 64 MHz, mounted several development ports, supported by Arduino, CircuitPython, and Micropython. Long-range: LoRa on the Semtech SX1262 supports the 868/915 MHz bands, providing powerful performance. Dual-core communication: It supports Bluetooth and LoRa dual modes, allowing for cross-domain interconnection. The integrated antenna is 8mm × 22mm × 23mm. Applications: Meshtastic Node&Router: An extremely compact node that may be used as a portable device or a stationary router to expand the Meshtastic network. LoRa/LoRaWAN Sensor: A little LoRaWAN sensor, excellent for those new to LoRa/LoRaWAN. When paired with a GPS module (such as the XIAO L76K), it can be used to track the movement of logistical vehicles, livestock, and important equipment. LoRa's long-distance coverage (2-5 km in urban areas and more than 10 km in suburban areas) can help to lower the cost of base station placement. Hardware Overview of XIAO nRF52840 Module: Pinout Diagram: Hardware Overview of Wio-SX1262: Pinout Diagram:

TP4056 Battery Charger C Type Module with Protection The TP4056 1A Li-Ion Battery Charging Board Type C with Current safety is a small module designed for charging single-cell 3.7V lithium-ion batteries, such as 16550s, that do not have their own safety circuit. Using the TP4056 charger IC and the DW01 battery protection IC, this lithium battery charger produces a 1A charging current and will automatically stop charging once completed. Also, if the battery voltage goes below 2.4V, the safety IC will cut off the load to save the cell from functioning at an unacceptably low voltage. The TP4056 charging module also protects against overvoltage and reverse polarity connections, often sacrificing itself to preserve the battery. Just remember to double-check your connections the first time you put it up. Your batteries can be safely and easily charged with TP4056 lithium-ion battery charger. All you need to do is connect it correctly, and it will do the rest. Use the Module Through the Following Steps: To supply power, either plug in a Type C cable or attach a 5V DC source to the IN+ and IN-labeled pads on the module's left side. Fasten the battery that has to be charged to the B+/B- pads on the module's right side. The OUT+/OUT- pads on the right side can also be used to attach a load, or an object that the battery will power. Keep in mind that while the battery is charging, unplug the load. When the charging process is finished, the green LED will turn on, while the red LED will illuminate to signify that the charge is ongoing. Be careful to never charge your battery at a rate exceeding 1C Note: Please remember the following crucial information: The module's 5V input side is the only one to which the ampere meter should be attached. A charging current of around 37% of the battery's capacity is advised. A 400mAh charging current is adequate for a 1000mAh battery. Make use of reasonably thin connecting cables. Verify the security of the connecting point. It is usual for the current to decrease below 1000mA if the input voltage is greater than 5.2V. In order to shield the chip from harm, this protective function immediately lowers the charging current. Reverse polarity should be avoided at all costs. Features It features a modern USB Type-C port that provides convenient and universal power. This module includes integrated protection against over-charge, over-discharge, and short-circuits. It utilizes an intelligent CC/CV algorithm to ensure a fast, safe, and efficient charging cycle. It is equipped with clear dual-LED indicators for at-a-glance monitoring of the charging status. This module is perfectly designed for charging single-cell 3.7V Li-Ion and Li-Po batteries. Its compact and high-precision design allows for seamless integration into any electronics project.

Mornsun LMF75-23B15 AC/DC 75W Enclosed Switching Power Supply The LMF75-23B15 is a 75W enclosed AC-DC switching power supply from Mornsun. It features a universal AC input voltage of 85-305VAC or DC input voltage of 120-430VDC, built-in active PFC function, high efficiency, and high reliability. It also has output short circuit, over-current, over-voltage, and over-temperature protection. The LMF75-23B15 is designed to meet IEC/EN/UL62368, EN60335, GB4943 standards and is widely used in areas of industrial, LED, street light control, electricity, security, telecommunications, smart home, etc. Features: Universal AC input voltage of 85-305VAC or DC input voltage of 120-430VDC Built-in active PFC function High efficiency (up to 87%) High reliability Output short circuit, over-current, over-voltage, and over-temperature protection Designed to meet IEC/EN/UL62368, EN60335, GB4943 standards Widely used in areas of industrial, LED, street light control, electricity, security, telecommunications, smart home, etc. check out : Mornsun LMF75-23B05 AC/DC 75W Enclosed Switching Power Supply Note: Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25?, humidity<75%RH with nominal input voltage and rated output load The room temperature derating of 5?/1000m is needed for operating altitude greater than 2000m All index testing methods in this datasheet are based on our company's corporate standards In order to improve the efficiency at high input voltage, there will be audible noise generated, but it does not affect product performance and reliability The out case needs to be connected to the earth ( )of system when the terminal equipment in operating The output voltage can be adjusted by the ADJ, clockwise to increase Our products shall be classified according to ISO14001 and related environmental laws and regulations and shall be handled by qualified units The power supply is considered a component which will be installed into the final equipment. All EMC tests should be confirmed with the final equipment

18650 1 Cell Holder This is a 1x battery cell holder for a rechargeable 18650 Lithium-Ion Cell. These battery holders are used to add single lithium cells and have clearly marked with polarity identification to assure proper orientation. It has shrapnel screens to hold the batteries, making the installation and replacement of the battery safe, easy, and reliable. Features Holds a single 18650 battery. Easy install, convenient to use. High-quality plastic material. Applications: Robotics: The 18650 Single Battery Cell Case Holder allows for easy incorporation of 18650 cells into robotics applications by providing a simple way to connect and power devices Prototyping: It is ideal for prototyping projects where a single 18650 Lithium-Ion Cell needs to be securely held and connected, ensuring proper orientation and easy installation DIY Electronics: Commonly used in do-it-yourself electronics projects, the holder facilitates experimentation and modification of circuits by providing a flexible and removable power source Automotive Electronics: In automotive applications, such as key fobs and portable navigation devices, the cell holder enables convenient battery replacement, ensuring uninterrupted operation of electronic components

3.7v 2000mah 18650 Li-Ion Battery 18650 lithium-ion battery is a Li-ion rechargeable battery with a 2000 mAh Battery Capacity. This is not a standard AA or AAA battery but is very useful for applications that require continuous high current or high current in short bursts like in cameras, DVD players, iPod, etc. These 3.7v 18650 li-ion battery 2000mah are safe to use, environment friendly and have long battery life. This li ion battery comes with high energy density and provides excellent continuous power sources to your device. It should be used with a protection circuit board that guards the 18650 battery against over-charge, over-discharge of the pack, and avoid over-current drawn. It is very easy to use the cell in any circuit just solder the wires on the terminals or use 18650 li-ion battery holders to easily replace the used cells. Care must be taken while handling Li-ion batteries as they are volatile and inflammable and should not be handled roughly and punctured. Also, don’t overcharge and discharge beyond a certain point as gases accumulated inside might result in explosions and fire. So always use the Protection board while using Li-Ion cells. Note: We do not recommend using this 3.7v 18650 lithium ion rechargeable battery for critical applications. The capacity and performance of the cell might vary based on charging and discharging parameters. Please note that we do NOT provide any guarantee/warranty on this product. Read our blog about Battery AH means , It covers all the details of batteries. Features: Safe to use, environment-friendly, and with long battery life High energy density for excellent continuous power sources Use with a protection circuit board to guard against over-charge, over-discharge, and over-current Easy to use in any circuit by soldering wires on the terminals or using battery holders Applications: Cordless Phones Tablet PC GPS iPod, DVD, MP4 Player, etc. Mobiles backup power supply/Power bank

Raspberry Pi 4 Model B 8GB RAM The Raspberry Pi 4 Model B (8GB) sets a new benchmark in compact computing, offering exceptional performance for academic, professional, and hobbyist applications. With 8GB of LPDDR4 RAM and a Broadcom BCM2711 Quad-Core Cortex-A72 (ARM v8-A, 64-bit) processor running at 1.5GHz, it delivers the processing power needed for advanced computing tasks such as artificial intelligence, data analysis, and software development. Supporting dual 4K displays via micro-HDMI ports, the Raspberry Pi 4B 8GB enables high-resolution visuals and smooth 4K video playback at 60 frames per second using H.265 decoding. It also features dual-band Wi-Fi (2.4GHz and 5GHz), Gigabit Ethernet, and Bluetooth 5.0, ensuring fast and stable connectivity for seamless browsing, streaming, and remote collaboration. With two USB 3.0 and two USB 2.0 ports, along with a 40-pin GPIO header, the Raspberry Pi 4B allows easy integration of sensors, motors, and external devices—making it ideal for robotics, IoT, and electronic prototyping. Compatible with Raspberry Pi OS, Ubuntu, and lightweight Windows versions, this board is versatile, reliable, and easy to power using a standard 5V/3A USB-C adapter, making it an outstanding tool for learning, experimentation, and innovation. Useful Link: https://www.raspberrypi.com/documentation/computers/getting- started.html Key Features: RPI 4 features a Broadcom 2711 processor for efficient multitasking. 8GB RAM enables running intensive data servers and virtual machines smoothly. The latest Broadcom 2711 Quad-Core CPU at 1.5GHz for 20% faster performance. Dual-display 4K support with hardware decode for smooth playback. Dual-band 802.11ac Wi-Fi and Bluetooth 5.0 for faster, extended-range connectivity. USB 3.0 technology for 10x faster wired networking. Maintains 40-pin header with new PoE pins, caution with HATs. Comes with NOOBS (New Out Of Box Software) for easy operating system installation. Pin Diagram: Important Information about Raspberry Pi 4 It can be used as a budget desktop PC with smooth multitasking. Runs Chromium browser for fast web browsing. Supports media centres like OSMC and LibreELEC for streaming and 4K playback. Plays classic console games via RetroPie emulators. Supports multiple OS options, including Raspbian, Ubuntu, and Snappy Core. Acts as a Windows 10 thin client for remote desktop use. Built-in WiFi and Bluetooth for seamless connectivity. Dual-display support enhances multitasking and productivity. Uses of Raspberry Pi 4: Learn programming languages like Python, Java, or Scratch. Learn to connect with sensors, LEDs, motors, and more. Create home automation systems, control lights, and security. Build gadgets, robots, or IoT devices. Improve STEM education in schools and universities. Prototyping of product ideas or concepts before full-scale development. Comparison Raspberry Pi 4B Vs Raspberry Pi 3B+ Vs Raspberry Pi 3B Feature Raspberry Pi 4 Model B Raspberry Pi 3 Model B+ Raspberry Pi 3 Model B Price (INR)₹ ₹ 3599 VIEW ₹ 3649 VIEW ₹ 3999 VIEW Processor Broadcom 2711, Quad-core Cortex-A72 64-bit SoC @ 1.5GHz Broadcom BCM2837B0, Quad-core Cortex-A53 64-bit SoC @ 1.4GHz Broadcom BCM2837A1 (B0), Quad-core Cortex-A53 64-bit SoC @ 1.2GHz Memory 1GB, 2GB, or 4GB LPDDR4 SDRAM 1GB LPDDR2 SDRAM 1GB LPDDR2 SDRAM Connectivity 2.4GHz / 5.0GHz IEEE 802.11.b/g/n/ac wireless LAN, Bluetooth 5.0, BLE, 2 x USB 2.0 / 2 x USB 3.0 ports delivering true Gigabit Ethernet 2.4GHz / 5.0GHz IEEE 802.11.b/g/n/ac wireless LAN, Bluetooth 4.2, BLE, 4 x USB 2.0 ports, Gigabit Ethernet over USB2.0 (max. 300Mbps) 2.4GHz IEEE 802.11.b/g/n/ac wireless LAN, Bluetooth 4.1, BLE, 4 x USB 2.0 ports Access Extended 40-pin GPIO header Extended 40-pin GPIO header Extended 40-pin GPIO header Video & Sound 2 x micro HDMI, 4K video, 1 x MIPI DSI display port, 1 x MIPI CSI camera port, 4-pole stereo output and composite video port 1 x full-size HDMI, 1 x MIPI DSI display port, 1 x MIPI CSI camera port, 4-pole stereo output and composite video port 1 x full-size HDMI, 1 x MIPI DSI display port, 1 x MIPI CSI camera port, 4-pole stereo output and composite video port Multimedia H.265 decode (4Kp60), H.264 decode (1080p60), H.264 encode (1080p30), OpenGL ES 1.1, 2.0, 3.0 graphics H.264, MPEG-4 decode (1080p30), H.264 encode (1080p30), OpenGL ES 1.1, 2.0 graphics H.264, MPEG-4 decode (1080p30), H.264 encode (1080p30), OpenGL ES 1.1, 2.0 graphics SD Card Support Micro SD format for loading OS & data storage Micro SD format for loading OS & data storage Micro SD format for loading OS & data storage Input Power 5V/3A DC via USB Type-C connector, 5V DC via GPIO, POE enabled 5V/2.5A DC via micro USB connector, 5V DC via GPIO, POE enabled 5V/2.5A DC via micro USB connector, 5V DC via GPIO Performance Tests: Raspberry Pi 4 Model B (8GB) vs Earlier Versions Powered by a quad-core ARM Cortex-A72 processor, offering a major performance jump over the older Cortex-A53 used in previous Pi models. Delivers faster application launches, smoother multitasking, and improved web browsing performance. In memory-intensive tasks, the 8GB variant shows higher read/write speeds and better overall responsiveness. Handles large datasets efficiently, enabling faster data transfers and better performance for heavy workloads. Upgraded hardware including USB 3.0 ports and Gigabit Ethernet enhances transfer speeds and network reliability. Ideal for power users running virtual machines, data-heavy programs, or multi-tab browsing sessions.