Samsung 4gb 2rx8 Pc3-10600u-09-10-B0 Desktop Ram

The Samsung 4GB PC3-10600U DDR3 1333MHz RAM module is strictly compatible with older desktop computers that feature a motherboard with DDR3 DIMM slots. The letter "U" in the specification explicitly stands for Unbuffered (or UDIMM), meaning it is meant for general consumer desktops rather than servers or laptops.