CH341A USB EEPROM Flash BIOS SPI Programmer
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Prices updated: 12 Oct 2026
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About this product
The CH341A USB programmer is a low-cost board built around the CH341A USB bridge chip, used to read and write 24 and 25 series EEPROM and flash memory chips, including motherboard BIOS chips. It is powered from the USB port and suits hobbyists and students working with serial memory devices.
Specifications
- Chip
- CH341A
- Interface
- USB 1.1
- Supported devices
- 24 and 25 series EEPROM / Flash
- Power
- USB port, 500 mA fuse (fused version)
- Operating systems
- Windows 98, ME, 2000, XP, Vista, 7 (32-bit)
Frequently asked questions
Which memory chips can it program?
It is intended for 24 and 25 series EEPROM and flash chips. Confirm that your exact part is in the supported chip list of the programming software before writing to it.
How should I connect it to a chip?
Check the target chip's operating voltage before connecting, and use the programming clip or adapter with pin 1 of the chip aligned correctly. Do not power the target from another source while it is connected to the USB programmer.
