16GB Total memory using 2pc of 8GB 1333MHz Module 240pin ECC Unbuffered dimm DDR3 10600. Genuine CMS brand, CMS is one of the most trusted names in the Computer Memory industry and this product carries a Lifetime Warranty from CMS MAX MEMORY 16GB SOCKETS 4 Features Compatible with Intel S1200BTL, S1200BTS, S1200KP, S1304BTL Mainboard