We guaranty this kit will work in your machine. 2pcs. 8GB DDR3L, 1600MHz, ECC, CL11, 2R, X8, 1.35V, Unbuffered, DIMM, 240-pin 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
Compatible with: Lenovo ThinkServer TS440 Manufacturing part numbers 70ALxxx; 70AMxxx; 70ANxxx; 70AQxxx
Max Memory: 32
GB Sockets: 4 Sockets