Super Talent DDR3-1333 4GB (2x 2GB) Value Memory Kit W1333UX4GV: Super Talent Desktop memory is fully compliant with industry standards to ensure compatibility with motherboards and OEM systems. As a member of the JEDEC association, Super Talent helps define future memory standards. All new products, new component suppliers, and technology changes are subjected to stringent hardware and software testing in our Compatibility Labs prior to production. Super Talent"s award-winning Desktop memory is also qualified and recommended by leading industry partners such as Asus and MSI. This additional level of testing ensures the highest possible levels of quality and compatibility. Super Talent Desktop memory is 100% tested. Every Desktop module we build is tested in a motherboard at its rated specs to guarantee functionality. Backed with Super Talent’s lifetime warranty, our Desktop memory is ideal for system integrators and for upgrades. DDR, DDR2, DDR3;DIMM modules up to 2GB;Dual Channel Kits up to 4GB (2x 2GB);Available with our without ECC;Optional heat spreaders provide exceptional thermal dissipation.