8GB G.Skill DDR3 PC3-19200 2400MHz Sniper Series (11-13-13-31) Dual Channel kit 8GB DDR3 2400MHz Dual Channel kit - 2x 4GB DDR3 modules PC3-19200 with memory timings of 11-13-13-31, CL11 Designed especially for Intel Z77 based motherboards G.Skill Sniper DDR3 Series With unique gun design heatsinks