No specific info about version 4.0. Please visit the main page of SmartSwitch on Mac Informer.
It lets you know if your hard drive is having mechanical or electrical issues.
Smart Scroll makes scrolling smoother, faster and more comfortable.
IOGEAR Printer Sharing Switch enables two Macs to easily share one USB printer.
Smart Shooter allows you to fully control your camera from your PC.
Smart, simple screen recording solution for your Mac.