![Amazon.com: WD Purple 1TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD10PURX [Old Version] : Electronics Amazon.com: WD Purple 1TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD10PURX [Old Version] : Electronics](https://m.media-amazon.com/images/I/819Pbam+KHL.jpg)
Amazon.com: WD Purple 1TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD10PURX [Old Version] : Electronics
![Amazon.com: Western Digital 8TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD82PURZ : Electronics Amazon.com: Western Digital 8TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD82PURZ : Electronics](https://m.media-amazon.com/images/I/71nv483AJKL.jpg)
Amazon.com: Western Digital 8TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD82PURZ : Electronics
![Western Digital WD BLUE 4TB 6TB 3.5" Hard Drive Disk SATA III 5400 RPM 500GB 1T 2TB HD Hard disk For Monitoring Desktop Computer - AliExpress Western Digital WD BLUE 4TB 6TB 3.5" Hard Drive Disk SATA III 5400 RPM 500GB 1T 2TB HD Hard disk For Monitoring Desktop Computer - AliExpress](https://ae01.alicdn.com/kf/S98bceb3195944e0e81aba71ca1f733bb6.jpg_640x640Q90.jpg_.webp)
Western Digital WD BLUE 4TB 6TB 3.5" Hard Drive Disk SATA III 5400 RPM 500GB 1T 2TB HD Hard disk For Monitoring Desktop Computer - AliExpress
![Amazon.com: WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 16MB Cache 3.5 Inch - WD5000AAKX : Electronics Amazon.com: WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 16MB Cache 3.5 Inch - WD5000AAKX : Electronics](https://m.media-amazon.com/images/I/815FxqvNQzL._AC_UF894,1000_QL80_.jpg)