If your Dell latitude e6420 laptop uses a standard CD/DVD drive, you can easily add a second hard drive to your laptop with the use of our optical bay hard drive caddy. Brand New, 30 days money back and one year warranty!
If you are not sure this will work for your notebook, please email the dvd model number, which you could see in the control panel-->system-->hardward-->device manger-->dvd rom, you should be able to see the model number listed. We will help you know which one to use and buy.