Wintec Value MHzCL9 2GB SODIMM Retail 2Rx8 Upgrade Kit 2 Not a Kit (Single) DDR3 1333 (PC3 10600) 204-Pin SO-DIMM 3VH13339S9-2GRU 2GB DDR3 1333MHz PC3-8500 SO-DIMM memory module ESD wrist strap Screwdriver Pre-paid return envelope to recycle the old memory module Step-by-step instruction manual and links to DIY videos online