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Miniature Raspberry Pi CM4 carrier board only exposes USB-C port and 40-pin GPIO header - CNX Software
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Computer Office Dual GPIO Expander Module Replacement USB Power Connector Extension Board for Raspberry Pi PICO Interface
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Amazon.com: for Raspberry Pi Compute Module 4,Mini Base Board (A) with Standard CM4 Socket and Raspberry Pi 40PIN GPIO Header Onboard Multiple Connectors CSI/DSI/FAN/HDMI/USB/RJ45, etc. : Electronics
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5V Mini Nano USB GPIO Expansion Board (A) Kit for RasPi Raspberry Pi Compute Module 4 CM4 Lite 2GB 4GB 8GB - Newegg.ca
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