Here is another tiny computer case for your next gaming PC or workstation. The Fractal Design Torrent Nano has a 180mm front fan and open grille for better air intake. It may be small but has room for a 3-slot 33m long GPU. Its RGB fans are controllable through the motherboard.
This PC case has bottom and front dust filters. It has tool-less push to lock side panels. The front I/O interface has 2 x USB 3.0, 1 USB 3.1 Type-C, and audio ports.