Does it work for Thinkpad T420?
297443
It worked well on my T420 but I only got one year before the battery went bad. Lasted from August '13 to December '14.
297444
Mine is T420i so it will work. I looked up through the Lenovo website for the battery model before the purchase. You can do the same to make sure.
717779
It is a generic size laptop hard drive so I am guessing if your thinkpad has the generic size laptop hd then it would. I cant imagine why it wouldnt.
544008
No it will not. The Lenovo T420 still has the old round power plug. This Adapter is for converting from the old round power plug outlet to the new rectangle shaped one.What do you want to achieve?
2062985
I "think" it will. It did fit my Lenovo T400. So unless there a major differences between the T400 and the T420, it should work fine.
644083
According the following URL link, yes: http://lenovo.com/us/en/PDFs/Thinkpad_t400_and_t500_datasheet.html
192016
I just got this and it does not work, based on the advice here. The docking connector does not even seem to be the right shape for my T420. Please advise.
823030
have a T410, but I believe it works for a family of Lenovo laptops as listed on the web site.
1976372
Cannot confirm for W500 however it is fit n function compatible with Thinkpad W520
702059
It appears to be similar to what you have already, should work just fine. I bought 2 of these for my IBM thinkpad but they just weren't compatible even though all spec's matched. Worst case is you may have to return and purchase a brand name that is on manufacturer's approved list. It is worth the try for the affordable price.
1541032
I purchased this for a Lenovo x230t based on my research on the Lenovo parts/support website. I do not know about the t400. Good luck.
77704
I have used it on Lenovo twist, Lenovo thinkpad X240 and T440 and it worked for me with no issues.
1454458
I don't own a T420s so I can't say. Try looking on Leonvo's website to see what's different between the T420 and T420s. Mine is a T420 and it works just fine.
1287028
I honestly don't know. We have T420 and T430 machines. They are compatible with those T4XX models. I hope this helps.
1184481
Worked fine in my Lenovo t530 laptop. But you can check crucial.com for compatibility.
1162952
I think it would work great. I have mine on a Lenovo T410s and it works great boots up in 3-4 secs.
1240832
Yes, it will work... read this http://computermemorydeal.dealproduct.com/2gb-memory-ram-upgrade-for-the-lenovo-thinkpad-r61-series-t60-series-t61-series-x60-series-and-x61-series-laptops-ddr2-667-pc2-5300-sodimm-big-discount.html
1038701
We've ordered a few of these, and they works with our fleet of T440p. I suspect it will work with the T440s also. Cheers!