Accortec 4GB DDR2 SDRAM Memory Module - 4 GB (2 x 2 GB) DDR2 SDRAM - ECC - Registered - 240-pin - DIMM
DDR2-667 ECC RDIMM KIT FOR IBM # 4522
Technical Specifications:
Memory Size: 4 GBMemory Technology: DDR2 SDRAMNumber of Modules: 2 x 2GBMemory Speed: 667 MHzError Checking: ECCSignal Processing: RegisteredNumber of Pins: 240-pinForm Factor: DIMMThickness: 157.5 milWidth: 1.2"Length: 5.3"Weight (Approximate): 0.56 ozCompatibility:
IBM - Power 520 9408-M25, IBM - System p 520 Express 8203