CH376S USB Flash Drive Reader Module (U Disk Module)
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Prices updated: 13 Oct 2026
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About this product
A breakout module built around the WCH CH376S chip, which lets a microcontroller read and write USB flash drives. The chip handles the USB host protocol and the FAT file system, so the microcontroller only sends simple commands over SPI or UART. Useful for data logging, file storage and offline media projects.
Specifications
- Chip
- CH376S
- Host interface
- SPI / UART
- Function
- USB host for flash drives
- File system
- FAT12 / FAT16 / FAT32
Frequently asked questions
Can I use it with an Arduino?
Yes. Connect the module over SPI or UART and use an existing CH376 library to open, read and write files. Check the module's pin labels and select the interface it is set up for before wiring.
Which USB drives are supported?
The module is designed for standard USB flash drives with FAT file systems. Format the drive as FAT32 before use for the most predictable results.
