As long as there’s some kind of power available inside the machine (e.g. an extra SATA power connector) it can just use that and wifi.
I suspect that the Valve engineers weren’t so short sighted though and probably have all the usual headers/connectors inside the thing that a normal PC would have. For example, a USB 3 header (the kind usually used for front-panel USB ports).
If anything, the device probably has at least one extra M.2 connector and a 1x or 4x PCI express connector. With those, anything is possible.
Even if the only power available is the CPU fan header you can always just use a splitter and pull power out of that.
As long as there’s some kind of power available inside the machine (e.g. an extra SATA power connector) it can just use that and wifi.
I suspect that the Valve engineers weren’t so short sighted though and probably have all the usual headers/connectors inside the thing that a normal PC would have. For example, a USB 3 header (the kind usually used for front-panel USB ports).
If anything, the device probably has at least one extra M.2 connector and a 1x or 4x PCI express connector. With those, anything is possible.
Even if the only power available is the CPU fan header you can always just use a splitter and pull power out of that.