![Amazon.com: WD Purple 6TB Surveillance 3.5 Inch Internal Hard Drive - Allframe 4K - 180TB/yr, 64MB Cache, 5640 RPM Class : Electronics Amazon.com: WD Purple 6TB Surveillance 3.5 Inch Internal Hard Drive - Allframe 4K - 180TB/yr, 64MB Cache, 5640 RPM Class : Electronics](https://m.media-amazon.com/images/I/71Nko+lhYbL.jpg)
Amazon.com: WD Purple 6TB Surveillance 3.5 Inch Internal Hard Drive - Allframe 4K - 180TB/yr, 64MB Cache, 5640 RPM Class : Electronics
![WD Black 6TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 128MB Cache 3.5 Inch - WD6002FZWX - Walmart.com WD Black 6TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 128MB Cache 3.5 Inch - WD6002FZWX - Walmart.com](https://i5.walmartimages.com/asr/d36c2a47-4fd5-4522-a29e-b421a5d0a71d_1.81a47c88273fa2a4f8022299214d0dd0.jpeg?odnHeight=2000&odnWidth=2000&odnBg=FFFFFF)
WD Black 6TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 128MB Cache 3.5 Inch - WD6002FZWX - Walmart.com
![Amazon.com: WD Purple NV 6TB Surveillance Hard Disk Drive - Intellipower SATA 6 Gb/s 64MB Cache 3.5 Inch - WD6NPURX : Electronics Amazon.com: WD Purple NV 6TB Surveillance Hard Disk Drive - Intellipower SATA 6 Gb/s 64MB Cache 3.5 Inch - WD6NPURX : Electronics](https://m.media-amazon.com/images/I/81RZyR5ZQgL._AC_UF894,1000_QL80_.jpg)
Amazon.com: WD Purple NV 6TB Surveillance Hard Disk Drive - Intellipower SATA 6 Gb/s 64MB Cache 3.5 Inch - WD6NPURX : Electronics
![Amazon.com: Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD60PURZ : Electronics Amazon.com: Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD60PURZ : Electronics](https://m.media-amazon.com/images/I/81-Pu8Hyy2L.jpg)
Amazon.com: Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD60PURZ : Electronics
![Amazon.com: Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD63PURZ : Electronics Amazon.com: Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD63PURZ : Electronics](https://m.media-amazon.com/images/I/51C7KdDOjsL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD63PURZ : Electronics
![Amazon.com: Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 128 MB Cache, 3.5" - WD62PURZ : Electronics Amazon.com: Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 128 MB Cache, 3.5" - WD62PURZ : Electronics](https://m.media-amazon.com/images/I/51vadKNhzCL.jpg)
Amazon.com: Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 128 MB Cache, 3.5" - WD62PURZ : Electronics
![Amazon.com: WD Green 6TB 3.5-Inch SATA 6.0Gb/s IntelliPower 64MB Cache Hard Drive (WD60EZRX) : Electronics Amazon.com: WD Green 6TB 3.5-Inch SATA 6.0Gb/s IntelliPower 64MB Cache Hard Drive (WD60EZRX) : Electronics](https://m.media-amazon.com/images/I/91lEqdLYqyL.jpg)
Amazon.com: WD Green 6TB 3.5-Inch SATA 6.0Gb/s IntelliPower 64MB Cache Hard Drive (WD60EZRX) : Electronics
![Amazon.com: Western Digital 6TB WD Blue PC Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD60EZRZ : Electronics Amazon.com: Western Digital 6TB WD Blue PC Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD60EZRZ : Electronics](https://m.media-amazon.com/images/I/71+Hq7FoCFS.jpg)
Amazon.com: Western Digital 6TB WD Blue PC Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD60EZRZ : Electronics
![Amazon.com: WD Purple 6TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD60PURX [Old Version] : Electronics Amazon.com: WD Purple 6TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD60PURX [Old Version] : Electronics](https://m.media-amazon.com/images/I/71t6bi2CdOL.jpg)