The Western Digital WDAC21200-71H IDE Hard Drive is a 3.5-inch internal HDD with 1.28 GB of storage and an IDE/ATA interface, built for legacy storage systems. It runs at 5400 RPM and uses 512‑byte sectors, making it suitable for desktop storage and legacy computing applications in vintage PCs, industrial computers, and older workstation environments. Manufactured by Western Digital, its MPN is WDAC21200-71H (also 99-004211-012), and it is intended for legacy storage replacement and restoration projects in desktop and legacy computer systems.
