2PCS OF 4GB PC3-10600 DDR3-1333 cl9 16c 256x8 204-pin SDRAM SODIMM. Lifetime exchange or repair warranty against manufacturing defects. Manufactured by Micron, Samsung, Hynex, or Nanya. 30 Day money back guarantee We don't use OEM or Generic brands to avoid incompatibilities
Max Memory: 8GB
SOCKETS: 2
Compatible with: Lenovo ThinkPad L520 5016-xxx Lenovo ThinkPad L520 5017-xxx Lenovo ThinkPad L520 7859-xxx Lenovo ThinkPad L520 7860-xxx