Lenovo Thinkpad T420 Laptop Upgrade - RAM, SSD, and Dual Hardrives - YouTube

Lenovo Thinkpad T420 Laptop Upgrade - RAM, SSD, and Dual Hardrives - YouTube: Here are the upgrades I made to my Lenovo Thinkpad T420. I'm sure this voids the warranty so check with Lenovo if you are concerned about that.