The WD400BB-00DGA0 is a Western Digital Caviar SE 40GB hard disk drive featuring a 3.5-inch form factor, 7200 RPM spindle speed, and ATA-100 (PATA) interface with 2MB cache. This PATA drive supports sustained data transfer rates typical of early-2000s enterprise and consumer systems, making it suitable for legacy server rebuilds, archival storage systems, or restoration projects requiring period-accurate components. The Caviar SE line balances performance and reliability for continuous-duty applications. Compatible with systems featuring standard IDE/PATA connectors and motherboards with ATA-100 support.
Tested and guaranteed; available via quote.
