Yes it is, but it has a bizarro round connector with an orientation
bar across the bottom. One could steal the mating connector from a
Bus Mouse ISA card, or replace the cable. Inside, though, it's like
Unless Microsoft have used armoured cable or something for this mouse,
can't you just apply wirecutters to remove the original connecotr and
then solder on whateer connector you like?
all of its other quadrature-emitting kin.
At least one Microsoft mouse I was inside had _horrible_ encoders
consisting of a disk with contact pads on it and springy brush contacts.
I think I prefere opto-electronic enocders...
-tony