Lenovo ThinkPad W540 - Specs, Tests, and Prices | LaptopMedia.com
suitable for Lenovo ThinkPad w540 w541 t540p notebook handheld keyboard frame top new original shell with fingerprint 00jt902|Laptop Bags & Cases| - AliExpress
CMS 16GB (2X8GB) DDR3 12800 1600MHz Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo®