Mini Dual Gigabit Ethernet Base Board for Raspberry Pi Compute Module 4 CM4, Onboard ETH/Micro SD/USB Interfaces, Suitable for Evaluating the Raspberry Pi CM4 or Being Integrated into End Products

• 【Mini Dual Gigabit Ethernet Base Board】Designed for Raspberry Pi Compute Module 4, onboard standard CM4 socket and 40PIN GPIO header, suitable for Compute Module 4 Lite/eMMC series module, Mini size: 55.0 × 68.0mm
• 【Rich Interfaces】Onboard dual gigabit ethernet RJ45 connector, USB2.0 port, Micro SD card socket for Compute Module 4 Lite (without eMMC) variants, meet the needs of specific applications in development
• 【Fan Header】Onboard 4-wire SH1.0 port, allows speed adjustment and measurement, only 5V fans are supported
• 【Power Input】Supports 5V DC Type-C interface power supply. Type C interface can be used as a power supply or as a USB interface to program the image (need to use the DIP switch to switch)
• 【Note】Do not plug or unplug any device other than a USB while it is powered on. In order to ensure the normal power supply for CM4, please do not connect other devices when using the Type C interface to program the image

Overview CM4-DUAL-ETH-MINI, a baseboard that can be used with Raspberry Pi Compute Module 4, supports 5V DC Type-C interface power supply, and features dual Gigabit Ethernet ports, single-channel USB2.0 with a fan interface and standard Raspberry Pi 40Pin interface, which is suitable for scenarios requiring multiple network ports such as soft routing. Specifications CM4 Socket : suitable for all variants of Compute Module 4 Networking : Dual Gigabit Ethernet RJ45 connector USB : USB 2.0 Port PIN HEADER : Raspberry Pi 40PIN GPIO header Storage : Micro SD card socket for Compute Module 4 Lite (without eMMC) variants Fan Header : 4-wire SH1.0 port, allows speed adjustment and measurement, 5V Power Input : 5V, Type-C interface Dimensions : 55.0 × 68.0mm Caution 1. Do not plug or unplug any device other than a USB while it is powered on. 2. Confirm the fan voltage before connecting, only 5V fans are supported. 3. The Type C interface can be used as a power supply or as a USB interface to program the image (need to use the DIP switch to switch). 4. In order to ensure the normal power supply for CM4, please do not connect other devices when using the Type C interface to program the image. 5. When CM4 is in normal use, it needs to provide 5V/2A power supply for CM4. Otherwise, there may be problems such as automatic shutdown, frequency reduction and so on. 6. USB2.0 is closed by default, if you want to open it, you need to add "dtoverlay=dwc2, dr_mode=host in config.txt". 7. For Opwenwrt, see the instructions for use. 8. This expansion board does not support the POE function. Package Content CM4-DUAL-ETH-MINI x1 Development Resources https://www.waveshare.com/wiki/CM4-DUAL-ETH-MINI?amazon