I have 2 Logitech cordless keyboard and mouse sets: "Cordless Access Optical Duo", purchased Dec. 2003 and "Cordless Desktop EX 110", bought Dec.2005. Each are bottom of the range, inexpensive sets but work well enough for my purposes.

Cordless Access Optical Duo: Mouse P/N: 851891-0000
Receiver P/N: 830680-0000

Cordless Desktop EX 110: Mouse P/N: 831540-0000
Receiver P/N: 831168-0000

To look at, the receivers are, for all intents and purposes, identical.

Are the mice interchangeable?

If I try a "trial and error" approach is there any likelihood of damage?

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There should be no problem with a test as long as it does not involve plugging anything into a PS2 port while the PC is on.

I tried using the older mouse with the newer receiver and it wouldn't connect, so at least with these 2 sets the mice aren't interchangeable, despite being superficially almost identical.

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