Mad Catz R.A.T Pro X3 Supreme Edition Review

Up Close - Sensor, Side Panels and Scroll Wheel

Should you want to adjust the sensor, or just replace it, it clips in and out easily. Realistically this is something nobody will ever really fiddle with, but in is in keeping with the wholly modular nature of the Pro X3 Supreme Edition.

There are three different extra side panels. Two for the right hand side which have a small shelf and large shelf respectively, whilst the alternative for the left hand side has wider hips pushing the buttons out a little further.

How the side panels of the mouse looks by default...

And in the widest 'pinkie shelf' format with the wider back/forward buttons installed too.

Should you so wish you can even change the scroll wheel, with the supplied one having large grooves on a hard surface, the one on the right having smaller grooves but still in hard plastic, whilst the one on the left is soft rubber.