WD WD1600AVCS AV-GP 160 GB AV Hard Drive: 3.5 Inch SATA II 16 MB Cache. Native Command Queuing (NCQ) IntelliSeek Preemptive Wear Leveling (PWL) SilkStream IntelliPark IntelliPower GreenPower technology. Drive Transfer Rate: 300 MBps (external). Internal Data Rate: 110 MBps. 160 GB capacity holds up to 32000 digital photos 40000 MP3 files and up to 19 hours of HD video. SINGLE PACK