A-Tech 8GB KIT 2 x 4GB HP-Compaq Pavilion dv5-2134ca dv5-2134us dv5-2135dx dv5-2138ca dv5-2139la dv5-2144ca dv5-2146la dv5-2148la dv5-2155dx dv5-2200 SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory 8GB KIT (2 x 4GB) SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For HP-Compaq Pavilion Series. (See Compatibility List Below)