4 pieces of 8GB DDR4, 2400MHz, Non-ECC, CL17, X8, 1.2V, Unbuffered, DIMM, 288-pin. Lifetime exchange or repair warranty against manufacturing defects by Computer Memory Solutions. Manufactured by Computer Memory Solutions. We don't use OEM or Generic Modules to avoid incompatibility. Max Memory: 128GB Sockets: 8 Compatible with: MSI - X99S SLI KRAIT EDITION Motherboard.