SkyHawk Surveillance Hard Drives SkyHawk is the world’s first purpose-built drive for video camera surveillance systems. Designed for DVR and NVR systems to support 24×7 workloads and up to 64 HD cameras, these drives come equipped with enhanced ImagePerfect to minimise dropped frames and include SkyHawk Health Management (SHM). Enjoy long-term peace of mind with a limited product warranty protection plan and the included three-year Rescue Data Recovery Services. Smart. Safe. Secure Leverage up to 8 TB for 24x7 workloads with drives designed for DVR and NVR systems. SkyHawk surveillance drives support up to 64 HD cameras and are equipped with enhanced ImagePerfect to minimise dropped frames. Included is SkyHawk Health Management (SHM) and 3-years of Rescue Data Recovery Services. Hard Disk Disk Capacity    4000 GB Disk Size    3.5 \" Disk Speed    5400RPM Drive Interface    SATA III Data Buffer/RAM    256 MB Performance Data Transfer Rates    Up to 180 MB/s Mean Time Between Failure (MTBF)    1,000,000 hours Electrical Electrical Power Consumption    3.7 W Environmental Operating Temperature    0 ~ 70 °C Physical Form Factor    Hard Disk Drive Enclosure type    Internal In The Box    Hard Drive Width    101.85 mm Depth    146.99 mm Height    20.2 mm Weight    490 g Warranty Warranty    3 Years Key Features Interface Type    SATA III Cache Memory    256 MB Disk Form Factor    3.5 Interface Type    SATA III Condition    New HDD Purpose    Surveillance Recording Technology    SMR Storage HDD Type    HDD