Raspberry Pi 4 Model B
Raspberry Pi 4 Model B is the latest product in the popular Raspberry Pi range of computers. It offers ground-breaking increases in processor speed, multimedia performance, memory, and connectivity compared to the prior-generation Raspberry Pi 3 Model B+, while retaining backwards compatibility and similar power consumption. For the end user, Raspberry Pi 4 Model B provides desktop performance comparable to entry-level x86 PC systems.
This product’s key features include a high-performance 64-bit quad-core processor, dual-display support at resolutions up to 4K via a pair of micro-HDMI ports, hardware video decode at up to 4Kp60, up to 4GB of RAM, dual-band 2.4/5.0 GHz wireless LAN, Bluetooth 5.0, Gigabit Ethernet, USB 3.0, and PoE capability (via a separate PoE HAT add-on).
The dual-band wireless LAN and Bluetooth have modular compliance certification, allowing the board to be designed into end products with significantly reduced compliance testing, improving both cost and time to market.
|Processor||Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz|
|GPIO||Standard 40-pin GPIO header (fully backwards-compatible with previous boards)|
|Video & sound||*2 × micro HDMI ports (up to 4Kp60 supported)
|SD card support||Micro SD card slot for loading operating system and data storage|
|Input power||*5V DC via USB-C connector (minimum 3A1)
|Environment||Operating temperature 0–50ºC|
|Compliance||For a full list of local and regional product approvals, please visit https://www.raspberrypi.org/documentation/hardware/raspberrypi/conformity.md|
|Production lifetime||The Raspberry Pi 4 Model B will remain in production until at least January 2026.|
1. Unstable Ethernet connection on RPi 4
A: Please refer to here: https://raspberrypi.stackexchange.com/questions/103448/unstable-ethernet-connection-on-rpi-4/103450