CMS 32GB (4X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad W520 Quad Core 4270 4276, 4282, 4284 - C12 at Amazon.com
mSATA SSD on the Lenovo W520 | RunCore 120 GB mSATA SSD upgr… | Flickr
How to Perform a Storage Upgrade (SSD-HDD) on a Lenovo Thinkpad P52 Laptop: Step-by-Step Guide✓ - YouTube
My next PC will be an Ultrabook - Scott Hanselman's Blog
Amazon.com: Bfenown 2nd HDD SSD Hard Drive Caddy Tray Replacement for Lenovo Thinkpad T420 T430 T510 T520 T530 W510 W520 W530, Internal Laptop CD DVD ROM Optical Modular Bay to 2.5 Inch