8GB KIT (2 x 4GB) For Asus G Series G51Jx G51Jx 3D G60Jx (Core i7) G73Jh (Intel i7-720QM/i7-820QM) G73JW-XT1. SO-DIMM DDR3 NON-ECC PC3-8500 1066MHz RAM Memory. Genuine A-Tech Brand. 8GB KIT (2 x 4GB) SO-DIMM DDR3 NON-ECC PC3-8500 1066MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Asus G Series. (See Compatibility List Below)