![Amazon.com: Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD30PURZ (Renewed) : Electronics Amazon.com: Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD30PURZ (Renewed) : Electronics](https://m.media-amazon.com/images/I/61C8HzOGoGS._AC_UF350,350_QL80_.jpg)
Amazon.com: Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD30PURZ (Renewed) : Electronics
![Amazon.com: Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD30PURZ (Renewed) : Electronics Amazon.com: Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD30PURZ (Renewed) : Electronics](https://m.media-amazon.com/images/I/717dq2OAC2L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD30PURZ (Renewed) : Electronics
![Amazon.com: Western Digital Purple 3TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD30PURX [Old Version] : Electronics Amazon.com: Western Digital Purple 3TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD30PURX [Old Version] : Electronics](https://m.media-amazon.com/images/I/81fWDTJVIPL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital Purple 3TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD30PURX [Old Version] : Electronics
![Amazon.com: Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD30PURZ : Electronics Amazon.com: Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD30PURZ : Electronics](https://m.media-amazon.com/images/I/81kdatS-wgL._AC_UF894,1000_QL80_.jpg)