06-08-2022, 05:29 PM
Probably better to use a wired or RF (USB dongle) keyboard. Otherwise, you'd have to reconnect the keyboard/mouse via bluetooth on each computer. Or swap for a wireless keyboard/mouse that can handle multiple connections, but then you have click the button the keyboard and mouse to switch everytime also.
This is an example of something that should work (not saying it's the best option):
https://www.amazon.com/OREI-Multiple-Com...08QRPCM7Z/
Plug in the 2009 and 2014 with the appropriate cable to HDMI and USB, and the 2021 via USB-C. And then an HDMI cable to the monitor.
This is an example of something that should work (not saying it's the best option):
https://www.amazon.com/OREI-Multiple-Com...08QRPCM7Z/
Plug in the 2009 and 2014 with the appropriate cable to HDMI and USB, and the 2021 via USB-C. And then an HDMI cable to the monitor.