Less than impressive reviews on the 70W
Here is the product page for the 90w
I have the Lenovo-branded version of the 95W for my T420s and have been thoroughly happy with it. It’s actually 90W with AC/DC input, but looks pretty much the same.
I use it exclusively in place of the ‘stock’ power adapter that came with the computer (except in a docking station).
My only gripe is that they don’t have an Apple lighting tip yet…
I believe that problem lies with Apple not releasing the specs & licensing to their proprietary connector to 3rd party manufacturers.
Are you telling me that I can’t just hold my TaylorMade 6 iron in my left hand and my laptop in my right hand while standing in a thunderstorm? GEEEZ, I’m gonna cancel the order for the golf clubs.