Au87101a - Ufdisk

The AU87101A is designed specifically for single-channel NAND Flash memory. Here is a breakdown of its primary responsibilities:

Note: As this is a 2026 article, you should look for the most recent versions listed, typically in the "AlcorMP" or "Alcor U2 MP" section.

The AU87101A is a workhorse. It provides acceptable performance at a low price point. For manufacturers trying to hit a specific price-per-gigabyte target, pairing an Alcor controller with cheaper, lower-grade NAND flash is a common strategy to keep costs down. au87101a ufdisk

: Using "Prepare" is a destructive process . It will permanently erase all data on the USB drive. It cannot be undone.

Execute the AlcorMP.exe (or U2_MP.exe ) file as an administrator. It provides acceptable performance at a low price point

If you have a flash drive that suddenly stops working, reports "No Media," or cannot be formatted, it might be built upon an Alcor Micro USB controller, specifically reported by detection tools as . These flash drives are often sold by brands like Intenso or THKAILAR and, due to issues with the flash controller's firmware, can become corrupted, write-protected, or show a capacity of zero bytes.

The AU87101A with UFDISK behavior is encountered in three scenarios: It will permanently erase all data on the USB drive

: It flashes the specific firmware settings (VID/PID, serial numbers, and manufacturer strings) to the AU87101A controller chip.