Waveshare PCIe to 2.5G Ethernet Board (B) for Raspberry Pi 5

No, this expansion board is designed exclusively for the Raspberry Pi 5. It connects via the unique 16-pin PCIe interface found only on the Raspberry Pi 5. Earlier models like the Raspberry Pi 4 or 3B+ do not have this physical connector and therefore cannot use this specific adapter. For older Pi models, you would need a USB-based Ethernet adapter or a board designed for a different interface like USB 3.0.

No, the board is driver-free and plug-and-play on the standard Raspberry Pi OS (formerly Raspbian). The RTL8156 controller chip is natively supported by the Linux kernel used in Raspberry Pi OS. Simply connect the board to your Pi 5 using the included 16-pin cable, power on the system, and the Ethernet ports should be automatically detected and available for network configuration through the OS settings or command line tools like 'ifconfig' or 'ip addr'.

The board supports link speeds of 10Mbps, 100Mbps, 1000Mbps (1Gbps), and 2500Mbps (2.5Gbps). To achieve the full 2.5Gbps speed, you must connect it to a compatible 2.5G Ethernet switch, router, or network interface card (NIC) using a high-quality Cat5e or Cat6 cable. The connection will auto-negotiate to the highest mutually supported speed. Ensure your network equipment and cables are rated for 2.5GBASE-T to utilize the maximum throughput capability of this adapter.

The board receives power directly through the 16-pin PCIe cable from the Raspberry Pi 5. It requires a stable 5V supply, which is provided by the Pi's PCIe interface. No external power adapter is needed. It is important to ensure your Raspberry Pi 5's power supply is adequate (typically a high-quality 5V/3A+ USB-C PD supply) to support both the Pi and the additional load of the active Ethernet controller and ports to ensure stable operation under high network load.