Form Factor SODIMM Capacity 8GB SPECS DDR3 PC3-10600 CL9 Unbuffered NON-ECC DDR3-1333 1.35V 1024Meg x 64 lead free halogen free for Mac ECC Non ECC Kit QTY 1 Speed 1333 MT/s Tracer False Voltage 1.35V DIMM Type Unbuffered Item Dimension (L"xW"xH") 2.66 x 1.18 x 0.12