WD  WD1600JSRTL Caviar 160GB SATA Hard Drive 160 GB SATA internal hard drive with cool, quiet, and fast operation; ideal for home and office desktops 7200 RPM spin rate; 8 MB cache; 3 Gb/s transfer rate WhisperDrive technology minimizes noise; SoftSeek technology increases operational efficiencies Holds up to 45,000 digital photos 40,000 MP3 files; 4,000 uncompressed CD-quality songs 3-year limited warranty