We guaranty this kit will work in your machine. 2pcs. 8GB DDR3, 1333MHz, ECC, CL9, X8, 1.5V, Unbuffered, DIMM, 240-pin Lifetime exchange or repair warranty against manufacturing defects. Manufactured by CMS
Compatible with: Lenovo ThinkServer TS440 Manufacturing part numbers 1098-xxx; 1100-xxx; 1105-xxx; 1106-xxx
Max Memory: 32
GB Sockets: 4 Sockets