WD Caviar Blue 160GB 3.5" HDD (part WD1600AAJB-00WRA0) features 7200RPM spindle speed with ATA-100 interface and 8MB cache buffer. Designed for desktop and entry-level server storage in RAID and single-drive configurations, this drive delivers sustained throughput suitable for general-purpose file storage and archival. Compatible with standard 3.5" drive bays and legacy IDE-equipped systems requiring capacities up to 160GB. Typical applications include non-critical backup, secondary storage, and replacement in older enterprise infrastructure where ATA connectivity remains prevalent. Tested and guaranteed; available via quote.