Samsung 4GB 2x 2GB 2Rx8 PC3-10600U DDR3 1333 Desktop Memory Kit M378B5673EH1/FH0 Manufacturer: Samsung Part Number: M378B5673EH1-CH9 or M378B5673FH0-CH9 Memory Type: 240 Pin DDR3 SDRAM Bus Type: PC-10600 1333Mhz Error Correction: Non-ECC