8GB Kit 2 x 4GB Memory Upgrade for HP Pavilion g6-1b39wm PC3-10600 1333MHz DDR3 SODIMM RAM (PARTS-QUICK BRAND) Capacity: 8GB Kit 2 x 4GB Speed: PC3-10600 DDR3 1333MHz Form Factor: 204 pin SODIMM Halogen Free; ROHS Warranty: Lifetime