Western Digital Caviar 1.6GB 3.5-inch hard disk drive (Part No. WDAC21600-71H) featuring 5200 RPM spindle speed, ATA-33 interface connectivity, and 128KB onboard cache. Designed for legacy enterprise storage expansion, archival applications, and systems requiring parallel ATA connectivity. Compatible with servers, workstations, and external enclosures supporting ATA-33 standard. Typical deployment in early-2000s infrastructure refresh, backup capacity augmentation, or specialized industrial equipment requiring compact high-capacity storage in constrained form factors. Each drive has been tested and guaranteed; available via quote.