The WD Western Digital WD1006-WAH MFM hard drive controller card is a vintage PC part specifically designed for AT (Advanced Technology) systems from 1986. As a universal card compatible with various brands, it allows users to upgrade their vintage PCs with modern storage technology. This product by WD is a reliable and authentic piece of history from the era of classic computing, making it a valuable addition to any vintage computing collection or restoration project. Item is untested although pulled from a new looking unit. Unit was a 286, hard drive was a seagate model st-4096 board has gold trace and fingers.