Lenovo ThinkPad W510, Intel Core i7-1st Gen CPU, 8GB DDR3, 320GB HDD, 15.6 Inch Display, NVIDIA Quadro FX 880M 1GB, Win 10 Pro, Refurbished Laptop
8GB (4GBx2) Team High Performance Memory RAM Upgrade For Lenovo ThinkPad W510 Series W700 Series Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com
Arch Memory 4GB 204-Pin DDR3 1333 MHz So-dimm RAM for Lenovo ThinkPad W510 43892QU at Amazon.com