8GB Team Xtreem DDR3 PC3-23100 2666MHz (11-13-13-35) Dual Channel kit 2x4GB 8GB DDR3 Dual channel kit (2x4GB) 2666MHz memory speed, PC3-21300 CL11 (11-13-13-35) at 1.65V Equipped super thermal conduction heat spreader Lifetime manufacturers warranty