2GB DDR2 667MHz ECC Power 550 Express Model M50 (9409-M50) MemoryRAM, Memorystock Part No: 732ms-732
2 Gig 2048MB 667MHz DDR2-667 PC2-5300, 240p DIMM, ECC non-Registered, 1.8v. This module must be installed in pairs for Dual Channel mode.. Compatible memory for Power 550 Express Model M50 (9409-M50)
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