WD Red NAS Hard Drives are designed specifically for NAS systems that have 1 to 8 drive bays in both 3.5-inch and 2.5-inch form factors. Capacity 750GB, 1TB, 2TB, 3TB, 4TB, 5TB, 6TB, 8TB, 10TB Interface SATA 6GB/s Form Factor 3.5 Inch RPM Class 5400 Cache 64MB, 128MB, 256MB Limited Warranty 3 year
