A-TECH 8GB KIT (4 x 2GB) For Gateway One Series ZX6900 ZX6900-01e ZX6900-33 ZX6900-49 ZX6951-53. DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory. Genuine Brand. 8GB KIT (4 x 2GB) DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Gateway One Series. (See Compatibility List Below)