4PCS OF 16GB 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: ASUS/ASmobile - X99-A II, X99-DELUXE, X99-E, X99-E WS/USB 3.1, X99-E-10G WS, X99-WS/IPMI Motherboards