Lenovo ThinkPad W520 15.6 Laptop, Intel Quad Core I7-2720QM up to 3.3Ghz, 4G DDR3, 240G SSD, DVD, USB 3.0, VGA, DP, DVI, W10P64-Multi Languages Support (EN/ES/FR), 1 year warranty Used Grade A -
Arch Memory 4GB 204-Pin DDR3 1333 MHz So-dimm RAM for Lenovo ThinkPad W520 4276-3LU at Amazon.com
parts-quick 8GB Memory for Lenovo ThinkPad W520 Series (Quad-core Models w/4 SODIMM) DDR3 PC3-10600 1333MHz SODIMM Compatible RAM at Amazon.com
Renewed Lenovo Thinkpad W520 Mobile Work Station i7-2860QM 8GB RAM 500GB SSD Windows 10 17" 1920x1080 Webcam With 30 Days Return, 90 Days Exchange Warranty
OFFTEK 8GB Replacement Memory RAM Upgrade for IBM-Lenovo ThinkPad W520 (Dual Core) (DDR3-12800) Laptop Memory at Amazon.com
Lenovo ThinkPad W520 Review: First Thoughts - StorageReview.com
Lenovo ThinkPad W520 Review - StorageReview.com
Lenovo ThinkPad W520 15.6 Laptop, Intel Quad Core I7-2720QM up to 3.3Ghz, 4G DDR3, 240G SSD, DVD, USB 3.0, VGA, DP, DVI, W10P64-Multi Languages Support (EN/ES/FR), 1 year warranty Used Grade A -
CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad W520 Quad Core 4270; 4276, 4282, 4284 - A13 at Amazon.com