AM244A . This storage device has a SAS (Serial Attached SCSI) drive interface, connecting the server motherboard with the hard drives. SAS drives are faster and more reliable than SATA drives. This device's storage capacity is 300GB (Gigabytes). 10000 RPM spindle speed. It has a cache of size of 16MB (Megabytes). The form factor on this device is 2.5-inch.