HP 4GB DDR3 SDRAM Memory Module - 4 GB (2 x 2GB) DDR3 SDRAM - 1333 MHz - Non-ECC
CTO ONLY 4GB 2X2GB DDR3-1333
Technical Specifications:
Memory Size: 4 GBMemory Technology: DDR3 SDRAMNumber of Modules: 2 x 2GBMemory Speed: 1333 MHzError Checking: Non-ECC