Likely the one. I’ve seen two different sized but similar trailers in the Schenectady plant, they rent them from some company down south. Does have a cab in the rear for tight maneuvering but most of the time it’s all controlled from the forward cab on the rig.
Another cool piece of equip are those power carts. Very large hydrostatic movers that can be continuously linked together to form a larger and larger platform. Wheels rotate around axis 360 degrees and they have vertical movement to conform to uneven terrain. They all link together and are control as a group by a single operator. Saw it on the science channel once.