[[File:IMG-5457.jpg|thumb|right|X635 V1.2 + Raspberry Pi CM4]]
[[File:IMG-5466.jpg|thumb|right|X635 V1.2 + Raspberry Pi CM4 + C235 Heatsink]]
==Note==
# '''Don't power via X635 USB-C socket when connect another PC to X635 USB-A'''.
# To '''enable the CM4 to be updated via rpiboot''', You have to put a jumper over the pins of "nBOOT" and "GND" on the 6-pin header.
# Please use only the '''screws(M2x3mm) for mounting the SSD''' come with this kit. Other screw size(length>3mm) will damage your Micro-SD card or the card socket!!!
==Overview==
The X635 is a ultra-compact carrier board specifically designed for the Raspberry Pi compute module 4.
* HDMI input: 1080p30, 1080p25, 720p30, 720p25
* Supports HDMI audio capture via i2s
* Gigabit Ethernet socket supporting Power over Ethernet (POE) expansion(Need extra PoE module)
* HDMI output port supporting 4K display
* '''M.2 2242 KEYM ''' KEY M socket for NVMe SSD storage expansion* Supports booting from MicroSD, eMMC and faster '''M.2 2242 ''' NVME SSD
* USB2.0 Type-A connector for external USB hub and programming the CM4 eMMC
* 26pin expansion header includes power pins and GPIO pins
* Small size measuring just 55 x 70 x 18mm
==How to Power==
Power via <span style="color:red;">X635 USB-C 5V In</span>
But '''if a PC is connected to X635 USB-A, the PC's USB will supply power to the X635''', and don't connect extra power supply to X635 USB-C.
==How to Cool==
Aluminum Heatsink for Raspberry Pi Compute Module 4, please refer to [[C235]]
[[File:IMG-5466-C235.jpg|border|700px|none]]
==Packing List==
* 1 x X635 V1.2 Expansion Board
* 1 x USB2.0 to USB2.0 Cable (Length: 45cm/17.72inch)
* 2 x Mini HDMI to HDMI Cable (Length: 50cm/19.69inch)
* 1 x Screws Pack
==PCB dimention==
Dimensions source file (DXF): [[File:X635-PCB-V1.dxf]] - You can view it with Autodesk Viewer online