I'd assume it runs off the 5v standby power when the primary ATX supply is sleeping. =3
Small recycled PCs can certainly work too, and reminds me of the https://guacamole.apache.org/ project. =3
https://jetkvm.com/docs/advanced-usage/developing#developer-...
And the serial console is available over USB UART (SBU)
If it's attempting to be a covert op it's doing either a terrible job or a very advanced one.
Given that very distinctive "JetKVM" shape, I am now 99% sure I've seen this gadget someplace last year, If I recall the Mandarin Chinese name (difficult for me), I will post the hardware URI.
One may be surprised how much hardware includes unsigned firmware OTA updates. And someone will need to audit the stack to check if it has that common problem, and predict if it also has SoM specific Linux kernel requirements.
The Raspberry Pi foundation isn't just hardware, but comes with a proven 10 year OS lifecycle. =3
It might be possible something popped up that looked very similar to the Kickstarter ad. Could also just have been a 4th container product run common with China CM exports. =3
Sipeed nano also launched around the same time, but they were cagey at first with open sourcing the firmware, requiring a certain number of github stars before they'd do that.
That NanoKVM is RISC-V, the JetKVM is ARM Cortex-A7. Unlikely to be a rebrand.
That said the UI looks somewhat similar so Sipeed might have aped the JetKVM software part (which is FOSS)
The JetKVM uses RockChip RV1106G3. =3
Would have to dump the flash with proper tooling, and load up a clean OS on a blank chip to even begin checking for issues. Mostly, these gadgets are purposely built like garbage for a number of reasons.
If I needed a DIY KVM install for a home-theater, I'd just setup a https://pikvm.org/ install. =)
https://github.com/pikvm/pikvm/