Full Details from Amazon.com : http://www.amazon.com/gp/product/B002TISFCG?tag=onigi-20
Corsair 4GB (2x2GB) DDR3 1333 MHz (PC3 10666) Desktop Memory (CMV4GX3M2A1333C9)
4GB Registered DDR3 1333MHz DIMM Memory Kit for Intel Tylersburg platform and Nehalem processors
Latency of 9-9-9-24 to maximize system performance
100 Guaranteed compatibility with all Intel Tylersburg platforms
4GB 2 x 2GB DDR3 Memory Kit - PC3-10666 1333MHz CL9 ECC Server Memory 9-9-9-24 15V
Lifetime Warranty
