Lenovo ThinkPad T520 core i7 2nd gen 8GB RAM 256GB SSD Hard Drive Windows 10 Pro 15.6” Laptop with charger in Excellent Working condition!!! Specific for Sale in Aurora, IL - OfferUp
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A-Tech 8GB (2 x 4GB) RAM for Lenovo THINKPAD T520 4240 | DDR3 1333MHz SODIMM PC3-10600 204-Pin Non-ECC Memory Upgrade Kit at Amazon.com
How to add RAM on Lenovo ThinkPad T520 - YouTube
Tuning the Lenovo T520 - Upgrading Memory and Installing an mSATA SSD • Helge Klein