16GB KIT (4 x 4GB) For HP-Compaq Pro Desktop Series 3115 (Minitower) 3125 (Microtower) 3130 (Microtower) 3130 (Small Form Factor) 3135 (Microtower) 3305 (Microtower) 3310 (Microtower) 3340 (Microtower) 3515 (Microtower) 6000 (MicroTower) 6000 (Small Form Factor) 6005 (MicroTower) 6005 (Small Form Factor) 6200 (Microtower) 6200 (Small Form Factor). DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory. Genuine A-Tech Brand. 16GB KIT (4 x 4GB) 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 Pro Desktop Series. (See Compatibility List Below)