Raspberry Pi CM4 IO Board Stick with Heatsink for Raspberry Pi Compute Module 4

Important Note: 1. Must make sure that the CM4 module is correctly installed on the expansion board before powering on. 2.Raspberry Pi Compute Module 4(CM4), heatsink and TF card is not included in the packing list. 3.USB-A and USB-AF/USB-C ports cannot be used at the same time. The USB-AF and USB-C power supply ports can be used at the same time. 4. CM4 module with emmc does not need to insert TF card, TF card is only needed for CM4 Lite models. Document: wiki.geekworm.com/CM4_Stick Overview This CM4 Raspi Compute Stick is an IO expansion board designed for Raspberry Pi Compute Module 4 CM4. Provides a variety of expansion interfaces for the CM4 module, including upgrade interfaces, 20pin GPIO expansion, CSI, full size HDMI2.0, TF Card slot, USB2.0, Type-C, 4PIN PWM fan port, etc..With a small and compact size, it is can be adapted to variety of applicantion. Supports to use with geekworm 12mm aluminum alloy heatsink C235(ASIN:B08PZ39L46). When connected to the computer with USB-A OTG, it becomes a real USB flash drive. Specification 1 x Full-size HDMI 2.0 Interface 1x USB-A: OTG USB (used to upgrade and update Raspberry Pi Compute Module 4) 1x USB-AF: USB 2.0 High Speed Interface 1x USB-C: 5V/3AType-C Power Port TF Card interface: Micro SD Card Slot (only supports CM4 module that without eMMC) GPIO: 20Pin GPIO Expansion Interface 1x fan interface: 4P/1.25mm PWM Fan Control Interface 1 x CSI camera FPC connectors (22-pin 0.5mm pitch cable) 1x Boot Switch System Startup Switch Interface (used when upgrading the system) 1x Toggl Switch (for function selection of USB device and CM4 device) Working Temperature: 0℃~80℃ PCB Dimension: 70x45mm Packing List： Bundle1： 1 x Raspi Compute Stick for CM4 1 x Screws pack(PM2.5x22mm) Bundle2： 1 x Raspi Compute Stick for CM4 1 x Screws pack(PM2.5x22mm) 1 x  CM235 Heatsink