Dell 8 Gb Memory Module for Select Dell Systems - 2rx4 Rdimm 1333mhz Lv Manufacturer Part# : Snpp9rn2c/8g | Dell Part# : A6996808 Compatible with Precision Workstation R5500 Precision Workstation T5500 Precision Workstation T5600 Precision Workstation T7600 Poweredge C1100 Poweredge C2100 Poweredge C6100 Poweredge C6105 Poweredge C6145 Poweredge C6220 Poweredge C8220 Poweredge M420 Poweredge M520 Poweredge M610 Poweredge M610x Poweredge M620 Poweredge M710 Poweredge M710hd Poweredge M915 Poweredge R410 Poweredge R415 Poweredge R510 Poweredge R515 Poweredge R715 Poweredge R720 Poweredge R720xd Poweredge R910 Poweredge T410 Poweredge T610 High performance 8GB DDR3 1333 ECC registered DIMM 100% compatible with Dell systems and workstations listed above