Western Digital WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5″ Hard Drive
Western Digital RED Pro 3.5” SATA 6GB/s 5400 RPM 4TB
Western Digital Ultrastar DC HC310 HUS726T6TALE6L4 3.5″ 6000 GB Serial ATA III
Western Digital Red NAS Hard Drive 6 TB , 3.5 in , 256 MB
Western Digital RED Pro 3.5” SATA 6GB/s 5400 RPM 14TB