![WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD20PURZ - Walmart.com WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD20PURZ - Walmart.com](https://i5.walmartimages.com/asr/0b066496-5c4a-41cb-b9e7-90ac8bf3f384_2.9c8cc69c176d5746d7df3a53c1999686.jpeg)
WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD20PURZ - Walmart.com
![Amazon.com: Western Digital Caviar Black 2 TB SATA III 7200 RPM 64 MB Cache Bulk/OEM Internal Desktop Hard Drive - WD2002FAEX : Electronics Amazon.com: Western Digital Caviar Black 2 TB SATA III 7200 RPM 64 MB Cache Bulk/OEM Internal Desktop Hard Drive - WD2002FAEX : Electronics](https://m.media-amazon.com/images/I/71VlefYc2WL.jpg)
Amazon.com: Western Digital Caviar Black 2 TB SATA III 7200 RPM 64 MB Cache Bulk/OEM Internal Desktop Hard Drive - WD2002FAEX : Electronics
![Amazon.com: Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD22PURZ : Electronics Amazon.com: Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD22PURZ : Electronics](https://m.media-amazon.com/images/I/71m5oiceJ5L.jpg)
Amazon.com: Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD22PURZ : Electronics
![Western Digital Original WD Blue 2TB hdd SATA 3.5" 64MB Cache Internal HDD Hard Drive for Desktop WD20EZAZ Western Digital Original WD Blue 2TB hdd SATA 3.5" 64MB Cache Internal HDD Hard Drive for Desktop WD20EZAZ](https://ae01.alicdn.com/kf/He9197dd333ff4a1f8a94e36f499b799f7/Western-Digital-Original-WD-Blue-2TB-hdd-SATA-3-5-64MB-Cache-Internal-HDD-Hard-Drive.jpg)