8GB Total memory using 2pc of 4GB 1600MHz Module 240pin dimm NON ECC DDR3 12800. Lifetime warranty for exchange. We don't use Generic modules to avoid incompatibility issues. Guaranteed to work or you get all of your money back including shipping. MAX MEMORY 32GB SOCKETS 4 Features Compatible with ASRock 970 Pro2, B85 Pro4, B85iCafe4, B85M Pro4 board