let assume i have 2 pc, one TR and one desktop.  i just bought logitech desktop MX bluetooth.  i can use my keyboard and mouse with the TR.  then i plug in the logitech hub/mouse charger HUB to the PC and configure my desktop so i can use my logitech bluetooth mouse and keyboard with the PC. 

now my question is, let say my desktop and my laptop are turn on at the same time and both PC bluetooth hub is on.  since i register my mouse and keyboard to both PC, when both PC are on, how do i use the keyboard and mouse?  another assumption is that both PC and devices are in the same small room.

anyone ever encounter this?

the bluetooth connection will only activate on one machine and you can adjust the settings to specify which computer you want activated. bluetooth has some sort of unique ID system built in so that it doesn’t interfere with another computer. the keyboard needs to “handshake” with the computer..setting up an encryption key so it is only talking to the one computer. you can authenticate with a different computer each time you wish to change pc.

so, to answer your question..yes, you can use it with both, but only with one pc at a time.