PC9801 Mouse Count Changer HEAT WAVE HW-100 Square Connector Unconfirmed Junk Due to lack of compatible equipment, operation is unconfirmed. Junk. No warranty. Product Description The output is "1/2x, 1x, 2x" relative to the original input. (Setting via slide switch on the main unit) Even if you are using a 200-count mouse, setting this count changer to 2x will effectively allow you to use it as a 400-count mouse.