Yes there is! We have our HBS304A24A - 4 to 4 USB 3.0 Peripheral Sharing Switch. This can be used to connect up to 4 USB peripherals to up to 4 computers. And this will have no restriction on the mouse pointer being able to be used on all extended displays for each computer. The only restriction here is that this does not have the “mouse roaming” feature so you would need to manually switch between which computer is currently using the connected USB peripherals using the physical switch button included.
Sincerely,