4GB KIT (2 x 2GB) For EMachines EL Desktop Series EL1200 EL1200-06w EL1200-07w EL1310-01 EL1310-02 EL1320 EL1321 EL1330 EL1331 EL1331-03 EL1331G-01w EL1333 EL1333-11f EL1333-21f EL1333G EL1333G-03w. DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory. Genuine A-Tech Brand. 4GB KIT (2 x 2GB) DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For EMachines EL Desktop Series. (See Compatibility List Below)