The mid-tower PC case, which features a motherboard configuration that rotates 90 degrees, is currently available to purchase. Silver and black are the two available colors. ATX, MicroATX, and Mini-IT... SilverStone Mid Tower PC Chassis ALTA F1 offers 90 ° Rotation Layout for Motherboard
To have been owner of Silverstone Raven, i can tell that it is a very convenient way to put a board. you have 100% of the connectivity on top, no more passing hand with big finger behind the PC.
Only downside with this case is that if you go watercooling, you end up with the radiator mounted directly above all of the IO.....which means limited access and cables potentially hitting fans....
