Brand: Western Digital,Model Number: WD10EFRX,Capacity: 120 GB,Form Factor: 3.5-inch,Connector/Interface: SATA 6 Gb/s,Transfer Rate: Up to 185MB/s,Disk Speed: 7200 RPM,Cache Size: 16 MB 64 MB,Endurance (TBW): N/A,Dimensions: 14.73 x 10.16 x 2.54 cm; 450 g,Weight: 450 g,Application: Up to 8-bay NAS systems,Ideal For: Personal home and small office NAS,Operating Temperature: 0C to 65C,Non-Operating Temperature: -40C to 70C,Features: Designed for RAID-optimized NAS systems, rated for 180TB/year workload, suitable for home offices and small businesses,Compatibility: RAID-optimized NAS systems with up to 8 bays.