4GB G.Skill DDR3 PC3-16000 2000MHz Ripjaw Series (9-10-9-28) Dual Channel kit for Intel L1156 Core 4GB DDR3 2000MHz Dual Channel kit Suitable for Intel LGA1156 based systems Timings 9-10-9-28, 1.65V PC3-16000 specification Two matched 2GB modules with G.Skill Blue Ripjaw heatsinks