Detail overview General Information : Manufacturer : SEAGATE Technology Manufacturer Part : 1GR221-251 Manufacturer Website Address : WWW.SEAGATE.COM Product Line : Enterprise Performance 10k Hdd Technical Information : Storage Capacity: 1.8 Tb Form Factor : 2.5 Inch Interface : Sas-12gbps Number Of Heads : 8 Number Of Disks : 4 Nand Flash Type : Emlc Nand Flash Size : 32 Gb I/o Acceleration And Response Time Optimization : Enabled Intelligent Nand Endurance Management : Yes Afr : 0.44% Performance : Rotational Speed : 10000 Rpm External Transfer Rate : 1200 Mbps Average Latency : 2.9 Ms Sustained Transfer Rate Outer To Inner Diameter : 241 To 117 Mbps Cache : 128 Mb Physical Dimensions (h X W X D) : 15.00 X 70.10 X 100.45 Mm Weight : 199 G condition : Refurbished (dell Oem). availability : In Stock. mfg Warranty : None. server Supply Warranty : 30 Days.