 "WD Red Pro NAS Hard Drive WD4002FFWX - hard drive 4 TB SATA 6Gb/s" " WD 6Gb/s Enterprise Drives CDW.com
"Joining the original color of NAS, WD Red Pro continues the formula of success that has led the WD Red product family by adding support beyond consumer and small business markets into medium and large 8-16 bay business storage systems. WD Red Pro hard drives integrate WD's exclusive technology, NASware, to provide unparalleled support for drive compatibility, reliability, and performance." 
 "Western Digital Red PRO 4TB 3.5 inch NAS Enterprise Hard Drive WD4002FFWX"@en WD4002FFWX LN72269 | SCAN UK"@en
"4TB WD Red Pro WD4002FFWX, 3.5" NAS HDD, SATA III - 6Gb/s, 7200rpm, 128MB Cache, NCQ                    "@en 