1TB 32MB Cache 7200RPM SATA II 3.0Gb/s Internal Desktop / CCTV DVR Hard Drive
This is a 1 TerraByte (1000GB) SATA hard drive with 7200RPM speed, 32MB cache SATA/300. 
This 3.5" SATA internal hard drive is fully compatible with any CCTV, DVR, NAS, External Enclosure, PC/Mac Desktop Computer with SATA interface.
Features:
1 Terabyte Capacity
Serial ATA 3.0Gbps Interface
32MB Buffer Size
7200 RPM Rotation Speed