ECC Ram16GB 2*8GB PC3L-10600E unbuffered M391B1G73BH0-YH9 1.35V HP 647658-081,HP 647658-081 ECC Ram16GB 2*8GB PC3L-10600E unbuffered M391B1G73BH0-YH9 1.35V,Type DDR3 SDRAM Form Factor UDIMM Brand Samsung MPN M391B1G73BH0-YH9 Number of Pins 240 Bus Speed PC3L-10600E (DDR3-1333) Total Capacity 16 GB Number of Modules 2 Capacity per Module 8 GB UPC Does not apply.Ram16GB 2*8GB PC3L-10600E unbuffered M391B1G73BH0-YH9 1.35V HP 647658-081 ECC.