When comparing Mad Catz RAT 7 vs HAVIT HV-MS732 LED Optical Programmable Gaming Mouse for PC, the Slant community recommends Mad Catz RAT 7 for most people. In the question“What is the best gaming mouse?” Mad Catz RAT 7 is ranked 37th while HAVIT HV-MS732 LED Optical Programmable Gaming Mouse for PC is ranked 93rd. The most important reason people chose Mad Catz RAT 7 is:
It will still work just as well as the day you bought it.
Specs
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Pros
Pro Reliable; keeps on going through the years
It will still work just as well as the day you bought it.
Pro Incredible flexibility
Many parts of the mouse are adjustable with interchangeable pinkie grips and palm rests to a custom weight system. The mouse is able to literally change its size and weight.
Pro Cordless version available
It also comes in a cordless version, called the RAT 9.
Pro Weight Tuning Set
The mouse provides extra 8 pieces of weights (2.4g each) that allow you to make the mouse heavier or lighter
Pro Programmable
It allows you to set keyboard keys on the mouse, besides general mouse button programming
Pro Best value
For $21.99 on Amazon, it offers Avago 3050, programmability, weight tuning set, and LED backlight.
Cons
Con Laser (not optical) sensor
Laser sensors are just not that great when compared to optical sensors. Often there is acceleration issues with laser sensors.
Con Expensive for what the internal hardware is
Sadly the components inside of this mouse are pretty cheap, ranging from the switches to the laser sensor. For the price Mad Catz is charging one should expect higher quality components.
Con Forward / back buttons wear easily
The two buttons located on the side of the mouse (sometimes known as the page forward and page back buttons for internet browsers) wear out easily after only a few months of usage. That means that it requires extra force to register a button press, all while receiving no touch (or audible clicking) feedback. Frustrating but the mouse does continue working.

Con Uncomfortable "seam" where your thumb and palm meet
