WAVESHARE 5 inch Touch Screen Expansion for Raspberry Pi CM4, PoE Header, Gigabit Ethernet, 4K Output About The Product I am a Raspberry Pi CM4 kit with a 5 inch touch screen all-in-one machine. The PoE pin Gigabit Ethernet port supports 4K output, onboard four-way USB2.0, 5-inch touch screen, etc. The all-in-one kit is convenient for users. Notes: 1. Do not plug and unplug any device except USB and HDMI while the baseboard is working. 2. If the fan needs to be replaced, please confirm the fan voltage and then power on. 3. The USB SLAVE interface is used to burn the image and cannot be used as an OTG interface. 4. In normal use, it is necessary to provide at least 5V 2.5A power supply for CM4. Otherwise, there may be problems such as automatic shutdown, frequency reduction and so on. 5. Onboard default 4-way USB 2.0 interface. 6. Support POE pins, additional POE HAT is required if POE function is required. 7. This screen needs to add a driver to work. Specifications 1. CM4 Socket: Suitable for all variants of Compute Module 4 2. Networking: - Gigabit Ethernet RJ45 connector - M.2 M KEY, supports NVME SSD 3. POE: PoE header (additional PoE HAT is required to enable PoE feature) 4. USB: USB 2.0 x 4 5. Display: 5 inch screen, 800 x 480 pixels, 5-point capacitive touch 6. Camera: MIPI CSI-2 port x 2 (15pin 1.0mm FPC connector) 7. Video: HDMI, supports 4K 30fps output 8. RTC: Real-time clock with battery socket and ability to wake Compute Module 4 9. Storage: MicroSD card socket for Compute Module 4 Lite (without eMMC) variants 10. Fan header: Allows speed adjustment and measurement, 5V 12V 11. Power input: 5V 12. Size: 127.7 x 87.45mm