This is something that should just work. The only things to worry are , is this an older rs232 mouse ? NO. Is this a wireless Logitech mouse with a Unifying Receiver? NO.
No to both questions. I am stumped. It should just work. Try another Mac. Get a different mouse
Try going to system report/ USB and see if its being recognized. ( does the power light come on ? )
My Mac mini today didn't power up its external usb superdrive drive so I think ill try rebooting it later
Its a wired mouse. It should just work
If it was a wireless mouse then you would need to know if its bluetooth ( a standard ) or if its 2.4 unifying receiver. The unifying receiver is not a wireless standard, it is a proprietary wireless technology that Logitech sells, and requires software from Logitech to run. There are posts on their Support forums because some of their unifying receivers don't work with OS X 10.11
The thing that says the mouse doesn't work with OS X , was just their SET POINT windows software that they bundle with their mice that you don't need to install at all