HP 4GB DDR3 SDRAM Memory Module - 4GB (2 x 2GB) - 1333MHz DDR3-1333/PC3-10600 - ECC - DDR3 SDRAM
CTO ONLY 4GB KIT 2X2GB DDR3
Technical Specifications:
Memory Size: 4 GBMemory Technology: DDR3 SDRAMNumber of Modules: 2 x 2GBMemory Speed: 1333 MHzMemory Standard: DDR3-1333/PC3-10600Error Checking: ECC