My build consists of two pc cases one for motherboard and the normal components, the smaller case is for the gpu. I wanted to make something unique but not have to do cutting or drilling to make things work. I researched and bought the pieces for this build and surprisingly it all kinda fell into place and worked. The doors/ windows are made from modded laptop cooling pads manufactured by thermaltake, there is a separate psu (500 watt) that powers the gpu case fans(6 fans) it also powers the rgb lights inside the case. I loved the idea of external gpu but wanted to improve on that idea. I use a 600mm phanteks premium riser cable connected through my main case into the back side of the gpu case. I did it this way so I could get the best performance using a external gpu type setup. Also I added a portable air purifier (usb powered) to the modded gpu case for added dust protection.