Here’s an easy hack compared to our usual craziness. Reader [Alex Dawson] was having issues with his Apple Pro Optical mouse. The new mouse had broken its USB cable connection internally due to insufficient strain relief. Cases for these mice are epoxied together and working on them is a one-way trip, never to return to their original state. He salvaged an ADB mouse and disassembled it with ease. The optical circuit board fit into the ADB case without any trouble. The button switch on both mice is exactly the same and almost in the same position. The optical sensor does not line up with the hole though. Once the ball ring was fused in place, Alex cut a new slot for the sensor. That’s all it took to end up with modern performance and old school flavor.