HyperX 4GB 1600MHz DDR3 PC3-12800 CL9 DIMM Desktop Memory, Black KHX16C9B1B/4 4GB Module of DDR3 Desktop Memory HyperX black features a sleek black heat spreader for greater heat dissipation to optimize reliability Adds high performance for increased in-game FPS and an overall faster system Non-ECC 1600MHz 240-pin Unbuffered DIMM Lifetime warranty, and free technical support