Western Digital 22TB WD Gold Enterprise Class SATA HDD, Internal Hard Drive, 7200 RPM, 512MB Cache - WD221KRYZ - Walmart.com
Refurbished: Western Digital Ultrastar DC HC530 14TB SATA 6Gb/s 7200RPM 512MB Cache 3.5-inch Hard Drive - WUH721414ALE6L4 (0F31169) - Newegg.com
Amazon.com: Western Digital 14TB Ultrastar DC HC530 SATA HDD - 7200 RPM Class, SATA 6 Gb/s, 512MB Cache, 3.5" - WUH721414ALE604 OEM (Renewed) : Electronics