TheeRaccoon is one of the lucky few to get his hands on a Quantum3D Mercury "brick," which comprises four Quantum3D Obsidian2 200SBi video boards. As The Dodge Garage explains, these were generally used for multi-channel visual simulation and training applications back in the day, but as TheeRaccoon’s video proves, they can also run a certain Valve shooter just fine. Thanks for the share, erek.