Full Details from Amazon.com : http://www.amazon.com/gp/product/B00LPNEJOO?tag=onigi-20
4GB KIT (2 x 2GB) For Dell Inspiron 11z (1110) 13 1318 14 1420 1427 1440 15 (1545) 1520 1521
4GB KIT 2 x 2GB SO-DIMM DDR2 NON-ECC PC2-6400 800MHz RAM Memory
Genuine A-Tech Memory
Lifetime Warranty
Toll Free Technical Support 1-866-557-4527
Designed For Dell Inspiron See Compatibility List Below