Dell PowerEdge R820 (RDimm) compatible MemoryMasters memory 16GB DDR3 ECC Registered RDIMM 1066MHz. Compatible computer model: Dell PowerEdge C6220 II, M910, M620 (RDimm), C6105 (RDimm), R810, T410 (RDimm), C6145, C6100, R815, T320 (RDimm), M610, R520, R710, R715, M420, C8220X, M915, R910, R415 (RDimm), R720, T610, R720XD (Rdimm), C8220, M610x, M520, R620 (RDimm), R820 (RDimm), R610, R515 (RDimm), R320, T420 (RDimm), M820, M710, T710, R510 (RDimm), R410 (RDimm). MemoryMasters Additional Details ------------------------------ Package quantity: 1