Lenovo 55Y3707 2GB DDR3 SDRAM Memory Module. 2GB PC3-8500 DDR3 SODIMM LOW HALOGEN MEMORY STDMEM. 2GB (1 x 2GB) - 1066MHz DDR3-1066/PC3-8500 - DDR3 SDRAM - 204-pin SoDIMM,Lenovo,55Y3707" />