The WD Red 1TB Internal SATA NAS Hard Drive is designed specifically for small NAS systems that have 1 to 5 drive bays. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and for the demanding system requirements of home and small office NAS. For added reliability, the drive runs at a low temperature and reduces data loss by completing the command in process before shutting down in the event of a power failure.
This hard drive is meant to be a network attached storage drive but can be used as a stand alone drive in laptops. It runs quiet is an intellidrive that the rpm's range from 5400 to 7200 depending on the load. It 's fast and responsive, and runs cooler than the average drives. performance is great and best of all the price was around $78.00 for the 1TB 2.5 inch drive.