Western Digital WDAC22100-32H Internal IDE Hard Drive

The Western Digital WDAC22100-32H is a Manufacturer Part Number WDAC22100-32H, a 2.1 GB, 3.5-inch internal hard disk drive in the Western Digital Caviar series, designed for desktop storage and legacy storage systems in vintage PCs, industrial computers, and older workstation environments that rely on IDE storage. Operating at 5400 RPM with 512-byte sectors and an IDE/ATA interface, this internal HDD provides straightforward data access and compatibility with legacy software and older motherboards that require traditional drive geometry. As a Caviar-branded drive, it fits standard 3.5-inch desktop bays and legacy enclosures, serving as a drop-in replacement for failed IDE drives in legacy computing setups. It is commonly used for replacement, restoration, and legacy computer maintenance, with WDAC21200 listed as a common IDE hard drive replacement option.