There is a solution to this problem of a Gordian knot of USB and power cables: the Fairywren, a board that turns your Raspberry Pi into a Mini-ITX computer. The basic idea behind the Fairywren is ...
The Seaberry is one such design, as demonstrated by [Jeff Geerling], giving the CM4 a Mini ITX formfactor and a ton of IO. (Video embedded after the break.) The Seaberry sports a full-sized x16 ...
The PCIe Gen 4 golden finger expansion on this board allows OEMs to leverage the standard Mini-ITX form factor while integrating powerful customization options directly through the PCB.” ...