Full Details from Amazon.com : http://www.amazon.com/gp/product/B00CZCNGWK?tag=onigi-20Micron 2GB PC3-10600 DDR3-1333MHz non-ECC Unbuffered CL9 240-Pin DIMM Dual Rank Memory Module4GB 2 Channel Kit 2 x 2GB HP Pavilion DV4 or similar