[jevogel]

Already exists.

https://www.cdw.com/product/siig-4-port-roaming-km-switch-wi...

[mobiuscog]

Does it work with custom/bespoke keyboard ? They often don't work in KVMs due to the HID emulation. I notice this Siig device notes to not use the numpad on the keyboard as well, on their homepage, which suggests a compromise.