The WD1200AAJS is a 3.5-inch hard disk drive from Western Digital's Caviar SE line, offering 120GB capacity with SATA II (3GB/s) connectivity. Spinning at 7200 RPM with an 8MB cache buffer, this drive delivers sequential throughput suitable for general storage and archival workloads in legacy enterprise environments. The SATA interface provides compatibility with standard server backplanes and external enclosures from the mid-2000s through early 2010s era. Typical applications include secondary storage expansion, departmental backup targets, and cold data retention in systems where modern high-capacity drives are not required. Tested and guaranteed; available via quote.
