Western Digital Red Plus (5400RPM, 3.5", SATA III, 64MB Cache) 2TB Internal...
Western Digital WD 1TB 2TB 3TB Red NAS Hard Disk Drive 3.5" Internal Hard Drive SATA 6Gb/s 64MB Cache For Desktop. Cache capacity: 64MB. WD40EFRX 5400/7200 64. WD30EFRX 5400/7200 64.