"Detail overview General Information : Manufacturer : Seagate Manufacturer Part : St4000nm000a Product Line : Exos 7e8 Product Name : Exos 7e8 4tb Hard Drive. Best-fit Applications : Hyperscale Applications/cloud Data Centers Massive Scale-out Data Centers Oltp And Hpc Applications High-capacity Density Raid Storage Mainstream Enterprise External Storage Arrays Distributed File Systems, Including Hadoop And Ceph Enterprise Backup And Restore—d2d, Virtual Tape Centralized Surveillance Key Features : Storage Capacity : 4 Tb Enclosure : Internal Interface : Sata-6gbps Bytes Per Sector : 512n Drive Dimensions : 3.5 Inch Mtbf : 2 Million Hours Humidity Sensor : Yes Super Parity : Yes Low Halogen : Yes Powerchoice™ Technology : Yes Advanced Write Caching (2m Internal Nor Flash) : Yes Drive Performance : Interface Access Speed (gb/s) : 6.0, 3.0, 1.5 Max. Sustained Transfer Rate : 215 Mbps Average Latency : 4.16 Ms Interface Ports : Single Buffer : 256 Mb Rotational Speed : 7200 Rpm Physical : Dimensions ( L X W X H) : 147.0 X 101.85 X 26.1 Mm Weight : 649 G "