We guaranty this kit will work in your machine. 4pcs. 8GB DDR3L, 1600MHz, ECC, CL11, 2R, X4, 1.35V, Registered, DIMM, 240-pin Lifetime exchange or repair warranty against manufacturing defects. by Computer Memory Solutions Manufactured by Computer Memory Solutions
Compatible with: Lenovo ThinkServer TD340 Manufacturing part numbers 70B7xxx
Maximum Memory: 48GB ECC UDIMMs 192GB Reg
ECC RDIMMs Expansions: 6 Socket (s) per CPU 12 Socket (s) using two CPUs