There are a few of them, notably Lian-Li cases. However, be advised, there are some pitfalls that come with using this type of case. If the motherboard you have uses heatpipe cooling for the chipsets, then this type of case is not recommended. The heatpipe cooling layout is designed for horizontal orientation or with the board vertical with processor to the top of the case. The invesrse mounting of the mobo decreases the cooling efficiency on heatpipe designs. Gravity does play a role in heatpipe design layout, something that has been verified with testing.