Depp Precision M4800. Great laptop; off-lease, refurbished, couldn't be happier. With i7-4810, 16GB ram, 500GB hybrid disk it's better than anything out there for twice the price. I got a DVD r/w, and the speakers are great.Mine is docked (Dell E-port, very inexpensive); it supports a 4k display and backup esata external drive.Downside; it's heavy (5 1/2 pounds) and the fan is sort of loud when it comes on.