![Amazon.com: Western Digital 500GB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD05PURZ (Old Version) : Electronics Amazon.com: Western Digital 500GB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD05PURZ (Old Version) : Electronics](https://m.media-amazon.com/images/I/71CdU9t6VGL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital 500GB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD05PURZ (Old Version) : Electronics
![Amazon.com: Western Digital 500GB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD05PURZ (Old Version) : Electronics Amazon.com: Western Digital 500GB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD05PURZ (Old Version) : Electronics](https://m.media-amazon.com/images/I/61ciA-BOFKL._AC_UF350,350_QL80_.jpg)
Amazon.com: Western Digital 500GB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD05PURZ (Old Version) : Electronics
![Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics](https://m.media-amazon.com/images/I/81RTnIVHweL.jpg)
Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [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 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/81BhP9O0yUL._AC_UF350,350_QL80_.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 Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics](https://m.media-amazon.com/images/S/aplus-media/mg/992134ea-9732-47f3-af62-5d8b6ad3eb81._SR970,300_.jpg)
Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics
![Amazon.com: Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD40PURZ : Electronics Amazon.com: Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD40PURZ : Electronics](https://m.media-amazon.com/images/I/819ijWY3BZL.jpg)
Amazon.com: Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD40PURZ : Electronics
![Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics](https://m.media-amazon.com/images/S/aplus-media/mg/93d664fe-9734-4c89-9bf5-e0ae9efc6758._SR285,285_.jpg)
Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics
![Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics](https://m.media-amazon.com/images/I/71qpD0ZjWJL.jpg)
Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics
![Amazon.com: Western Digital 500GB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD05PURZ (Old Version) : Electronics Amazon.com: Western Digital 500GB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD05PURZ (Old Version) : Electronics](https://m.media-amazon.com/images/I/71CdU9t6VGL.jpg)
Amazon.com: Western Digital 500GB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD05PURZ (Old Version) : Electronics
![Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics](https://m.media-amazon.com/images/I/41q5pGRLyML._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics
![Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics](https://m.media-amazon.com/images/I/51-WRnPZ+OL._CR2,0,716,404_SR684,386_.jpg)