[jay-anderson]

According to this page the 40 pin IO is available through a MIL-DTL-38999 connector. I've always liked those military connectors. https://en.wikipedia.org/wiki/U.S._Military_connector_specif...

[metaphor]

38999-like, which the marketing language generously omits.

Make no mistake, Glenair proprietary interconnect is used here. See this[1] for some sense of why this subtle distinction matters.

[1] https://www.grassley.senate.gov/news/news-releases/grassley-...

[c_o_n_v_e_x]

The connectors alone cost more than the Pi hardware.

[someweirdperson]

True only for the hobbyist editions of the Pi.

[nextlevelwizard]

They are literally using Pi 4 compute modules with wireless, 8GB RAM, and 32GB flash which costs less than 35€