AddOn 4GB DDR3 SDRAM Memory Module - 4 GB DDR3 SDRAM - 1.35 V - ECC - Registered - 240-pin - RDIMM
Dell® A4849721 Compatible Factory Original 4GB DDR3-1333MHz Registered ECC Dual Rank x8 1.35V 240-pin RDIMM
Technical Specifications:
Memory Size: 4 GBMemory Technology: DDR3 SDRAMMemory Voltage: 1.35 VMemory Speed: 1333 MHzError Checking: ECCSignal Processing: RegisteredNumber of Pins: 240-pinForm Factor: RDIMMEnvironmentally Friendly: YesEnvironmental Certification: WEEE, RoHSTAA Compliant: No