The YY-7901 is a 9L S.F.F. Slim Chassis and the YY-77xx 8L S.F.F. Slim Chassis are brother products.
It aims to provide a relief solution towards the blooming demand for the small PC case. It simplifies the design, offering a durable housing for the hardware device. In the meanwhile, it preserves an incredible big clearance space to accommodate the standard CPU cooler. With the useful FPIO combination and the complete support for the security options most system builders like to use, it is a wonderful alternative for small Micro ATX case.