The board then has a M.2 slot in the middle for NVME drives, and x1 PCI-E slot hanging ... the 14-pin CM4 IO header, as well as the usual DSI, CSI and RTC hookups. The Mini ITX design is a ...

These modems would often slot into a Mini PCI-e slot in the netbook motherboard. [delokaver] figured out how to use these 3G cards over USB instead. It’s actually a fairly straightforward hack.