Alcor: Micro Unknown Fa00 - F W Fa04 //top\\

If you have stumbled upon this entry in your Device Manager, usually nestled under "Memory technology devices" or "Other devices," you are likely dealing with a laptop or desktop containing an Alcor Micro card reader controller. This article aims to demystify this specific hardware ID, explain why Windows struggles to identify it, and provide a comprehensive guide to resolving the issue.

To understand the problem, we must first understand the manufacturer. is a Taiwanese fabless semiconductor company renowned for their USB card reader controllers. If you own a laptop from major manufacturers like ASUS, Acer, MSI, Dell, or HP, there is a very high probability that your built-in SD card slot is powered by Alcor technology. Alcor Micro Unknown Fa00 - F W Fa04

Most "Unknown" Alcor Micro devices are internal smart card readers found in laptops (like Lenovo ThinkPads). You likely need the specific manufacturer driver: Lenovo Users: Download the Alcor Micro USB Smart Card Reader Driver Lenovo Support . This often fixes identification issues. General Devices: If you aren't on a Lenovo, you can try the generic drivers DriverScape , which support Windows 7 through Windows 11. 2. If it's a USB Flash Drive (Recovery) The identifier specifically corresponds to the Alcor AU6989SN-TA If you have stumbled upon this entry in