Full Details from Amazon.com : http://www.amazon.com/gp/product/B00CB5NMZM?tag=onigi-20
4GB RAM Memory for Compaq Pavilion G4 g4-2149se Black Diamond Memory Module DDR3 SO-DIMM 204pin
Brand new certified 204pin PC3-12800 1600MHz DDR3 SO-DIMM Black Diamond Memory
Low density 4GB memory single stick memory module
100 compatible garrantee for Compaq Pavilion G4 g4-2149se
100 pre-tested on Compaq system to ensure functionality
Lifetime warranty
