Western Digital Blue WD5000AAKX 500G 7200RPM SATA3/SATA 6.0 GB/s 16MB Hard Drive (3.5 inch)
Western Digital Purple WD40PURX 4TB IntelliPower SATA3/SATA 6.0 GB/s 64MB Hard Drive (3.5 inch)
Storage Specifications Storage Capacity 1TB Technology HDD Form Factor 3.5 Inch Interface SATA 6Gb s RPM Class 7200 rpm Cache 64MB Warranty 1 Year warranty
Western Digital Purple WD20PURX 2TB IntelliPower SATA3/SATA 6.0 GB/s 64MB Hard Drive (3.5 inch)