SwitchHopper is an inexpensive switch interface.
SwitchHopper provides a place to plug switches into a computer. There are 3 switch inputs in SwitchHopper. When you plug a switch(es) into a the SwitchHopper jack(s), the switch(es) ‘become’ standard mouse-clicks (Win: left, middle, right; Mac: left, drag, control-click), and with installation of the accompanying software, you can configure each button to 'be' any mouse-button event or keystroke you’d like!
SwitchHopper does not interfere with the
operation of other pointing devices, such as a mouse.
It works in addtion to your mouse. Your mouse retains
all of its normal functions (if installed, and the
SwitchHopper software is Awake, the switch inputs might be
reconfigured, and this would affect all mouse buttons.
Alt-X, toggles between awake & asleep to reinstate your
regular mouse button functionality). Having
this as an option is not only easy to switch back and forth,
it's also a time saver and extremely convenient for every
user.