Seagate Enterprise Capacity ST12000NM0037 12TB 7200RPM SAS 12 Gb/s 256MB Enterprise Hard Drive. Mfr Part Number: ST12000NM0037. Capacity: 12TB. Spindle Speed: 7200 RPM. Cache: 256 MB. Interface: SAS 12Gb/s. Max. Sustained Transfer Rate OD: Up to 261, 249 MB/s. Average Latency: 4.16 ms. Idle Average: 5.5 W. Operating Power: 9.3 W. Power Supply Requirements: +12V and +5V. MTBF: 2,500,000 hours. Dimensions (WxDxH): 4.000 x 5.787 x 1.028 inch / 101.60 x 147.00 x 26.11 mm. Weight: 1.433 lbs / 650.0 g This drive is compatible with any server that accepts 3.5inx1.0in SAS Drive.