How to upgrade SSD and memory at Lenovo ThinkPad T550 - YouTube
Amazon.com: Lenovo ThinkPad T550 15.6 inches Laptop, Core i5-5300U 2.3GHz, 8G RAM, 480GB Solid State Drive, Windows 10 Pro 64Bit (Renewed) : Electronics
Lenovo ThinkPad T550 15.6" Intel Core i5-5300U 2.30GHz 8GB RAM 256GB SSD Microsoft office installed. Backlit keyboard. Nothing wrong. Comes with for Sale in Phoenix, AZ - OfferUp
parts-quick 8GB Memory for Lenovo ThinkPad T550 DDR3L 1600MHz PC3L-12800 SODIMM Compatible RAM at Amazon.com