It features an original board created by Heber that works with the Raspberry Pi CM4. One of the MultiPi's most interesting design elements is its cartridge slot, which is reminiscent of old-school ...

These are much smaller than the original model, so MrNiceThings has opted to create a custom PCB, the RSPX v1.0, that will optimize the space using a CM4 instead of a full-sized Pi.