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 2TB
Western Digital RED Pro 3.5” SATA 6GB/s 5400 RPM 14TB
Western Digital Red NAS Hard Drive 4 TB , 3.5 in , 256 MB
Western Digital Gold 1TB Enterprise Class Hard Disk Drive – 7200 RPM Class SATA 6Gb/s 128MB Cache 3.5 Inch – WD1005FBYZ