4TB Skyhawk 5.4K RPM
Seagate Part# ST4000VX016
Hard Drives - Internal – Hard Drive - 256 MB Buffer - No Wireless LAN - SkyHawk - SATA - SATA/600 - Internal - 3.5" Form Factor - Network Video Recorder - Camera - Video Recorder - 4 TB Storage Capacity - Conventional ...
3TB WD Blue SATA
Western Digital Part# WD30EZAZ
Hard Drives - Internal – Hard Drive - 256 MB Buffer - No Wireless LAN - Blue - SATA - SATA/600 - 5400 Spindle Speed (rpm) - Internal - 3.5" Form Factor - Desktop PC - Storage System - 3 TB Storage Capacity - Windows 8.1 - ...