Raspberry Pi 4 Model B with 8 GB RAM

Specifications

• Processor: Broadcom BCM2711, Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
• Memory: 8GB LPDDR4-3200 SDRAM
• Connectivity: 2.4 GHz and 5.0 GHz IEEE 802.11ac wireless, Bluetooth 5.0, BLE
• Networking: True Gigabit Ethernet
• USB Ports: 2 × USB 3.0 ports; 2 × USB 2.0 ports
• GPIO: Standard 40-pin GPIO header (fully backwards compatible)
• Video & Sound: 2 × micro-HDMI ports (supporting up to 4kp60), 2-lane MIPI DSI display port, 2-lane MIPI CSI camera port, 4-pole stereo audio and composite video port
• Multimedia: H.265 (4kp60 decode), H264 (1080p60 decode, 1080p30 encode), OpenGL ES 3.1, Vulkan 1.0
• Power Input: 5V DC via USB-C connector (minimum 3A), 5V DC via GPIO header, Power over Ethernet (PoE) enabled (requires separate PoE HAT)
• Operating Temperature: 0 – 50 degrees C ambient

Applications

• Edge AI & Machine Learning: Run TensorFlow Lite or OpenCV object detection models without memory crashes.
• Heavy-Duty Home Automation: Host Home Assistant with dozens of add-ons, InfluxDB, and Grafana simultaneously.
• Enterprise IoT Gateways: Process and aggregate massive amounts of sensor data locally before pushing to the cloud.
• Micro-Servers & NAS: Build a high-speed Network Attached Storage using the true Gigabit Ethernet and USB 3.0 ports.

Unlock New Capabilities

• Past Projects: If you’ve mastered basic Python scripting on the Raspberry Pi 3 or Zero and find your web servers or vision scripts freezing due to lack of memory...
• The Upgrade: This 8GB powerhouse unlocks the ability to compile heavy code natively, run local Large Language Models (LLMs), operate intensive Docker containers, and handle dual 4K displays seamlessly.
• Effort Level: Intermediate to Advanced. You will need a proper 15W (5V 3A) Type-C power supply, an active cooling case (highly recommended for the BCM2711), and a flashed MicroSD card with a 64-bit OS to utilize all 8GB of RAM.

Virtual Technician & Wiring Guide

• ⚠️ CRITICAL POWER WARNING: Do NOT use cheap mobile phone chargers. The Pi 4 requires a stable 5V / 3.0A power supply via Type-C. Voltage drops will cause throttle warnings and SD card corruption.
• ⚠️ LOGIC VOLTAGE WARNING: The Raspberry Pi 4 GPIO pins operate strictly at 3.3V. Connecting 5V sensors or logic directly to the GPIO pins will permanently destroy the CPU. Always use a logic level converter for 5V components!

      Basic I2C Wiring (Pins 3 & 5): Physical Pin 1: 3.3V Power

• Physical Pin 3: SDA (I2C Data)
• Physical Pin 5: SCL (I2C Clock)
• Physical Pin 6: Ground

Package Includes:

• 1 x Raspberry Pi 4 Model B with 8 GB RAM

Frequently Asked Questions (Technical FAQs)

• Do I need a 64-bit OS to use the Raspberry Pi 4 8GB?
  Yes, to allocate and utilize the full 8GB of RAM for a single process, you must install a 64-bit version of Raspberry Pi OS or Ubuntu. A 32-bit OS will only allow 3GB per individual process.
• What power supply is required for the Pi 4 8GB?
  It requires a 5V 3A (15W) power supply via the USB-C port. For heavy USB peripheral usage, a 5.1V 3A official supply is highly recommended.
• Does the Pi 4 8GB overheat easily?
  The BCM2711 processor generates significant heat. While it works bare for light tasks, active cooling (a fan or heavy aluminum heatsink case) is mandatory for continuous high-load operations to prevent thermal throttling at 80°C.
• Can I power the Raspberry Pi 4 via the GPIO pins?
  Yes, you can supply a regulated 5V (3A minimum) directly to physical Pin 2 or 4 (5V) and Pin 6 (Ground), bypassing the USB-C port. Ensure the power is strictly regulated.
• Is the GPIO pinout the same as the Raspberry Pi 3?
  Yes, the 40-pin GPIO header is identical and backwards compatible with previous Raspberry Pi HATs and accessories.
• Does it support Power over Ethernet (PoE)?
  Yes, the board has PoE pins, but it requires an additional, compatible PoE HAT to extract power from the Ethernet cable.
• What is the maximum MicroSD card size supported?
  It supports MicroSDXC cards, meaning capacities of 64GB, 128GB, 256GB, and up to 1TB are fully supported when formatted correctly (exFAT/FAT32 depending on the imaging tool).
• Can the Pi 4 boot from a USB SSD instead of a MicroSD card?
  Yes, native USB boot is supported. You can flash your OS to a USB 3.0 SSD or flash drive for significantly faster read/write speeds.
• Are the HDMI ports standard size?
  No, the Pi 4 uses Micro-HDMI ports. You will need a Micro-HDMI to Standard HDMI cable or adapter.
• Can it run dual monitors?
  Yes, the two Micro-HDMI ports support dual displays at up to 4K resolution at 60Hz.
• What is the logic voltage of the GPIO pins?
  The GPIO pins operate strictly at 3.3V. Applying 5V directly to any GPIO pin will permanently damage the board.
• Does it have built-in WiFi and Bluetooth?
  Yes, it features dual-band 2.4GHz and 5.0GHz 802.11ac WiFi, alongside Bluetooth 5.0 and BLE.
• What is the difference between the USB ports?
  There are two blue USB 3.0 ports (fast data transfer, ideal for SSDs) and two black USB 2.0 ports (ideal for keyboards/mice).
• How do I connect a camera module?
  Use the 2-lane MIPI CSI (Camera Serial Interface) port located on the board. Note that the Pi 4 uses the standard 15-pin 1mm pitch connector.
• How do I connect a touchscreen display directly?
  Use the dedicated 2-lane MIPI DSI (Display Serial Interface) port using a ribbon cable compatible with official or DSI-based screens.
• Can it run Windows 10/11?
  While ARM-based Windows can be forced to run via third-party tools, it is not officially supported and lacks hardware acceleration. Linux-based OS (Debian/Ubuntu) is recommended.
• Does the 8GB model use more power than the 2GB/4GB models?
  The idle power consumption is marginally higher due to the larger RAM module, but the peak power draw under load remains roughly the same.