8GB KIT (2 x 4GB) For Gateway One Series ZX4970-UR10P ZX4971 ZX4971-ER30P ZX4971G-UW20P ZX4971-UB10P ZX6970-UM20P ZX6970-UR10P ZX6971-UB20P ZX6971-UB21P ZX6971-UR10P. SO-DIMM DDR3 NON-ECC PC3-12800 1600MHz RAM Memory. Genuine A-Tech Brand. 8GB KIT (2 x 4GB) SO-DIMM DDR3 NON-ECC PC3-12800 1600MHz 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)