Western Digital 80 GB SATA internal hard drive with cool and quiet operation 7200 RPM spindle speed; 8 MB cache WhisperDrive technology minimizes noise; SoftSeek technology increases operational efficiencies; Data Lifeguard Tools protect data; ShockGuard protects hard drive during operation Holds up to 22,000 digital photos; 20,000 MP3s; 2,000 uncompressed CD-quality songs; 6 hours digital video; 35 hours of DVD-quality video; 9 hours HD video