This Seagate Exos 7E8 4TB 7.2K 3.5" 12Gbps SAS Hard Drive is a brand new item that comes with various features. It supports hot plug and hot swap, and provides cloud storage. The drive type supported is HDD, and it has a storage capacity of 4TB with a cache of 256MB. The interface of the item is SAS and its height is 1". As for the form factor, it is 3.5". This internal desktop drive is compatible with computers, tablets, and networking devices. The model number for this item is ST4000NM003A.Main SpecificationsCapacity4TBDevice TypeHard drive - internal - Format (512n SAS)Dimensions (WxDxH)Height 1.028 x Width 4.010 x Depth 5.787 inForm Factor3.5inWeight1.58 lbsInterfaceSAS3 12Gb/sInterface TypeDualIncluded Qty5Optical StorageBuffer Size256MB CacheHard DriveSpindle Speed7200PerformanceAverage Latency4.16Interface Access Speed (Gb/s)12.0, 6.0, 3.0Max Sustainable Transfer Rate215MB/sRotational Vibration12.5ReliabilityBytes per Sector512Non-Recoverable Errors1 sector per 10E15Power-On Hours per Year8760Annual Failure Rate Information (T10 DIF), Humidity Humidity Sensor, SuperParity, Low Halogen, PowerChoice Technology, PowerBalance Technology, 256 Cache Multisegmented (MB), Advanced Write Caching (Internal NOR flash)Environmental ParametersMin Operating TemperatureTemperature, Operating (C): 5C 60CShock, Operating Read/Write (Gs): 70/40GsShock, Nonoperating, 1ms/2ms (Gs): 150/300PowerAverage Operating Power11.33WIdle (W)5.94WRequirement+12 V and +5 V