IBM 146GB Serial Attached SCSI 2 (SAS-2) 6Gb/s 15K 2.5-inch Slim Hot-Swap Hard DrivePart Number(s)IBM Option Part# 42D0677IBM FRU# 42D0678IBM Part# 42D0681IBM Part# 42D0679Overview:The IBM 146GB 15K rpm SAS-2 6GBps 2.5-inch Slim HDDs provide 2.5-inch form factor that can be used as Hot-Swap drives. The addition of a 146 GB 15K rpm offering to the System x and BladeCenter blade family of 2.5-inch SAS HDDs makes it one of the highest-performing SFF options. These drives are positioned at the top of the SAS SFF HDD line based on increased performance and capacity.Specifications:Category IBM HardDriveSub-Category 15KGeneration SASPart Number 42D0681-10PackProducts ID 461312Capacity 146GBInterface SAS-2Enclosure InternalHDD Form Factor 2.5 inchesSpindle Speed 15000RPMExternal Data Transfer Rate 6G = 6Gb/sec (750 MB/s)Seek Time 2.9msBuffer Size 16MBAverage Latency 2msInterface (Detailed) Serial Attached SCSI 2 (SAS-2)Hot Swap Yes