Dell 8GB DDR3 PC3-10666 Registered ECC Module Pins: 240 Voltage: 1.5V Frequency: 1333MHz Ranks: 2 Compatible Products A2862068 (1066MHz) (Dell); A2862073 (1066MHz) (Dell); A2884830 (1066MHz) (Dell); A2884831 (1066MHz) (Dell); A2884832 (1066MHz) (Dell); A2884833 (1066MHz) (Dell); A2884834 (1066MHz) (Dell); A2984886 (1333MHz) (Dell); A2984887 (1333MHz) (Dell); A3198153 (1333MHz) (Dell) Compatible Systems Dell PowerEdge PowerEdge M610 PowerEdge M710 PowerEdge R410 PowerEdge R610 PowerEdge R710 PowerEdge T310 PowerEdge T410 PowerEdge T610 PowerEdge T710 Dell Precision Precision Workstation T5500 Precision Workstation T7500