If your AU6370 reader is built into a laptop, the most reliable source is your laptop manufacturer’s support site:
The AU6370 chip is a versatile controller that supports a wide array of flash memory formats, including: SD, SDHC, and MMC. Memory Stick: MS, MS PRO, MS Duo, and MS ROM. CompactFlash: CF and MicroDrive (MD). Others: xD-Picture Card and SmartMedia (SMC). Alcor Au6370 Driver Windows
If you have a generic USB peripheral, you may need to use trusted driver repositories: If your AU6370 reader is built into a
The is a highly integrated single-chip USB 2.0 controller designed specifically for multi-slot flash memory card readers . Whether you are using it in a notebook, a handheld device, or a standalone peripheral, having the correct Windows driver is essential for stable data transfers between your PC and various storage media. Understanding the Alcor AU6370 Chip Others: xD-Picture Card and SmartMedia (SMC)