The Western Digital Caviar Green WD6400AARS-00Y5B1 is a 3.5-inch SATA hard drive delivering 640GB capacity at 5400RPM with 64MB cache and 3Gb/s throughput. Designed for power-efficient operation in desktop and external enclosure applications, this drive suits general-purpose storage, archival systems, and backup solutions where sustained performance is less critical than reliability and thermal efficiency. The 5400RPM spindle speed minimizes heat output and power consumption, making it appropriate for always-on NAS deployments and external storage configurations. Compatible with standard SATA interfaces and legacy systems, the Caviar Green integrates readily into older enterprise-class storage arrays and refurbished server builds requiring commodity-grade capacity.
Each unit has been tested and guaranteed fully functional. Available via quote from G5 Network Group.
