WD  3 TB WD AV-GP SATA III Intellipower 64 MB Cache Bulk/OEM AV Hard Drive WD30EURX Power-conserving WD AV-GP drives offer significant power savings and thermally optimized operation resulting in lower cost of ownership and unsurpassed reliability for PVR/DVR, IPTV boxes and media server manufacturers. Silk Stream - Optimized for smooth, continuous digital video playback of up to twelve simultaneous HD streams. Silk Stream is compatible with the ATA streaming command set so CE customers can use standard streaming management and error recovery options. Ideal for set-top boxes (PVR, DVR and IPTV), media servers, media centers, and surveillance applications. 3 TB capacity holds up to 600,000 digital photos, 750,000 MP3 files, and 360 hours of HD video. 3 year limited warranty. Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary.