A-TECH 4GB KIT (2 x 2GB) For IBM Lenovo IdeaCentre K300 5316-2AU 5316-2CU K305 5316 K320. DIMM DDR3 NON-ECC PC3-8500 1066MHz RAM Memory. Genuine Brand. 4GB KIT (2 x 2GB) 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 IBM Lenovo IdeaCentre. (See Compatibility List Below)