The WD400BB-00JHCO is a Western Digital Caviar SE 40GB hard drive in 3.5-inch form factor, delivering 7200 RPM performance with ATA-100 (PATA/IDE) interface connectivity. This drive features 2MB cache and is compatible with legacy systems requiring parallel ATA connectivity, including older workstations, servers, and storage arrays from the early-to-mid 2000s. The Caviar SE line provides reliable sequential throughput suitable for general-purpose storage, archival systems, and equipment still operating PATA infrastructure. Typical use cases include replacement drives for aging enterprise servers, RAID rebuilds in legacy systems, and retention storage where newer SATA connectivity is unavailable. Note that this is legacy technology; integration requires systems with native PATA support or appropriate IDE controller cards.
Unit tested and guaranteed. Available via quote.
