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Prolific Usb To Serial Comm Port Usb2.0 Rs232 Adapter Cable Plc Cpu Mcu Firmware Update Flash Debug Wire - Pc Hardware Cables & Adapters - AliExpress
What is the white BIOS USB port on the motherboard's IO used for? Will peripherals work in this port? - Quora
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Update: I posted about the Meross door opener with the broken USB port. Details in comments : r/HomeKit
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