Seagate SkyHawk 3.5” 3TB Surveillance Internal HDD Key Features 3TB Surveillance Internal HDD 5400 rpm Rotation Speed Compatible with Mac & Windows SATA 3.0 Interface 2-Year Limited Warranty Overview The SkyHawk 3TB leverages Seagate\'s extensive experience in designing drives purpose-built for surveillance applications. 24/7 workloads can leverage up to 8 TB with drives designed for DVR and NVR systems. SkyHawk surveillance drives are equipped with enhanced ImagePerfect and SkyHawk Health Management to help you sail through your toughest challenges. Specifications Disk Type HDD Surveillance External? No Capacity 3TB Rotation Speed 5400 rpm Cache 256MB Transfer Rate up to 6Gb/s Interface SATA 3.0 Compatibility MAC, Windows Dimensions 147 x 102 x 20 mm