Genuine Hynix HMT325U6CFR8C-H9 Computer Memory 2GB 1Rx8 PC3-10600 497157-D88 Dell OptiPlex 790 Desktop DDR3 RAM Memory Hynix Model: HMT325U6CFR8C-H9 Capacity: 2GB Data Transfer Rate: 1333Mhz 240 Pin