Been running my business on this machine for the last two years. It was in a bin full of e-waste along with docking stations, cables, various other things. It had 8GB RAM, Windows 7 on a 500GB 5400RPM HDD so of course I swapped in a 1TB SSD and swapped out the RAM with 16GB. I replaced the battery "just because", and I have to say this thing just holds up to everything I throw at it.
https://zero3nine.com/T440P.jpg
Now I wish I had saved all of them. I went from just wanting a disposable laptop to experiment with various Linux distros and now this thing is in full time service and gives me no trouble at all.