I recently added one to my collection. Not sure if it's 400lbs., but it must be 350 for sure. The cab is typical Atari (kee games), heavy and thick. 23" monitor, and of course it's 3" wide.....
I think it easily could, I think Mortal Kombat's weigh about 400 and the Sprint 2 I had felt about the same. Sometimes though the flyer says "shipped weight" which includes a pallet and packaging I think.