AddOn AM1333D3DRE/4G x1 Lenovo 57Y4138 Compatible Factory Original 4GB DDR3-1333MHz Unbuffered ECC Dual Rank 1.5V 240-pin CL9 UDIMM

ACP-EP Memory is your memory partner with upgrades available for all the latest notebooks, desktops, servers and workstations. All ACP-EP Memory products are manufactured to JEDEC standards, to meet or exceed all OEM specifications.