This compact carrier board for Raspberry Pi Compute Module 5 provides dual-Gigabit Ethernet ports along with a range of features and breakouts to provide a useful platform for network-focussed CM5 projects and applications. The base board's dual gigabit Ethernet ports are assisted by a Realtek RTL8111H Gigabit NIC chip, with port 0 using the CM5's original network port, and port 1 running via PCIe. The Ethernet ports are conveniently placed alongside a USB-A 3.2 Gen1 port and a USB-C port for 5V power in and programming, ensuring the main cabling routs to the rear of the board for a tidy setup. On the top of the board you'll also find BOOT and power buttons to one side, with fan and RTC headers to the rear of the USB port - both using the same connectors as the Raspberry Pi 5 to allow use of the same RTC/fan accessories if desired. A pre-soldered, colour-coded GPIO header is also provided for IO interfacing and supporting the use of HATs. The underside features a MicroSD card slot for use with CM5 Lite (non-eMMC) variants, system switch solder pads for disabling/enabling various system features such as Wi-Fi and Bluetooth, and of course - LED indicators! CM5 and power supply not included Features * Compact carrier board for Raspberry Pi Compute Module 5 * Compatible header fitting for CM5 * Dual Gigabit Ethernet ports (CM5 port + PCIe port via RTL8111H) * USB-C port for 5V power/programming * USB-A 3.2 Gen1 port * MicroSD card slot for CM5 Lite variants * BOOT and Power buttons * Fan and RTC headers compatible with Raspberry Pi 5 accessories * Colour-coded GPIO header * System switch solder pads * LED indicators Specifications CM5 socket Suitable for all variants of Compute Module 5 Networking Dual Gigabit Ethernet RJ45 connectors USB USB 3.0 port Pin header Raspberry Pi 40-pin GPIO header Storage MicroSD socket for Compute Module 5 Lite (without eMMC) variants Fan header 4-wire SH1.0 port, allows speed adjustment and measurement, 5V Power input 5V, Type-C interface Dimensions The base board: 55.0 × 68.0mm With metal case: 61.0 × 75.0 × 27.5mm What's onboard? * 40-pin GPIO header * For connecting HATs * CM5 socket * Compatible with all variants of Compute Module 5 * PSW button * BOOT button * RTC battery header * For connecting a rechargeable RTC battery * Fan header * Connects cooling fan; supports speed control and monitoring * RJ45 Gigabit Ethernet ports * Dual ports, 10/100/1000M compatible * Ethernet 0: CM5 original network port * Ethernet 1: PCIe extended network port * USB 3.2 Gen1 Type-A port * For connecting USB devices * USB Type-C port * 5V power supply or eMMC programming * TF card slot * For pre-burnt image (Lite variant only) * RTL8111H * Gigabit NIC chip * SYSTEM switch * EEPROMWP: Prevents EEPROM overwrite * WiFiDIS: Disables Wi-Fi (CM5 wireless variants only) * BTDIS: Disables Bluetooth (CM5 wireless variants only) * Indicators * Red: Power status * Green: Working status Resources * Product Wiki Package Contents * 1x Waveshare Mini Dual Gigabit Ethernet Base Board CM5 and power supply not included https://elecena.pl/product/29502116/mini-dual-gigabit-ethernet-base-board-for-cm5 2025-11-12 https://elecena.pl/product/29502116/mini-dual-gigabit-ethernet-base-board-for-cm5 2025-11-29