This wheel should look familiar to you. The rim is a co-molded carbon-aluminum rim with a hybrid-toroidal dimpled surface. It comes out of Zipp's Indianapolis, Indiana manufacturing facility. In other words, this rim is the old Zipp 404, the last of the carbon-aluminum rims Zipp makes.
The wheel came about because of consumer demand. There is still a great interest in a 58mm deep aero rim with an aluminum braking surface. It works for the thrifty as well as those seeking out proven performance. At 58mm deep, this wheel flies on flat roads, and a weight that still makes it lighter than many a shallower wheel. The wheel is great for triathletes on a budget as well as racers looking to gain an edge in flat to rolling road races.
Be careful of deals that look too good to be true. Do not send money to unknown sellers.