SINGLE BULK PACK WD Red (WD30EFRX) is the only hard drive designed for NAS systems that have 1-5 drive bays. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS. 3TB, SATA 6Gb/s, 64MB cache, IntelliPower Rotational Speed.
SINGLE BULK PACK Western Digital Serial ATA 6Gb/s Black Power, 3.5" Internal Hard Drive 2TB, 7200 RPM. 64MB buffer. Our all new next-generation WD Black drives deliver improved performance that heightens the experience in your PC playground...
SINGLE BULK PACK WD Red is designed specifically for NAS systems that have 1 to 5 drive bays in both 3.5-inch and 2.5-inch form factors. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS. 4TB, SATA 6Gb/s, 64MB cache, IntelliPower Rotational Speed.