Western Digital Pro 3.5 inch 4TB SATA Internal Desktop
http://www.amazon.co.uk/dp/B00LO3KRM8?tag=dedik-21
Feature
* Depth:147 mm
* Height:26.1 mm
* Device Type:Hard drive - internal
* Buffer Size:64 MB
Western Digital WD4001FFSX - WD Red Pro WD4001FFSX - Hard drive - 4 TB - internal - 3.5" - SATA 6Gb/s - 7200 rpm - buffer: 64 MB
http://www.amazon.co.uk/dp/B00LO3KRM8?tag=dedik-21
