I'm using the Dell Latitude E7470. It works great with Qubes OS, and the only reason that I haven't upgraded to the E7480 (which supports 32 GB RAM) is because

I'm using the Dell Latitude E7470. It works great with Qubes OS, and the only reason that I haven't upgraded to the E7480 (which supports 32 GB RAM) is because I'm waiting for the next model. Pros: Good keyboard, decent touch pad, 32 GB memory support (for the E7480), great Linux compatibility. Cons: Somewhat costly, poor GPU (the latter doesn't matter to me since I'm using Qubes which doesn't allow you to use the GPU anyway).