Seagate Brand New, 1.5 TB (1,500 GB) HDD for DVR System

Specifications Mfr Part Number: ST31500341AS Capacity: 1.5 TB Rotational Speed: 7200 rpm Cache: 32 MB Interface: SATA 300 Max. External Transfer Rate: 300 MB/s Seek Time: Average latency: 4.16 ms Read: <8.5 ms Write: <10.0 ms Dimensions (WxLxH): 4.0 x 5.78 x 1.02 inch / 101.6 x 146.99 x 26.11 mm Weight: 1.587 lbs / 0.72 kg