As RoboRealm runs on a PC you will most likely need something inbetween the PC and the final object you want to power. I.e. something like a PLC or motor driver can do the job. It will really depend on what the hardware is that you need to trigger. For a lot of TTL type applications a regular Arduino controlled from the PC can be used to trigger a 5V TTL signal. Sometimes instead a device like the U421 is sufficient.
The better question to ask is if RoboRealm has built in ways to integrate with external devices. The answer is yes ... quite a few different ways. That exists in just about every project that we do. So, whether it be for a specific device (of which we have quite a few modules) to the more generic serial, parallel, ethernet, etc. communications you should be covered. If you are not, and have a device that is commonly used, we'll add a module to that for free.
See the Control heading under
to see if any of those suit your needs.