InfinitiKloud User Guide Passcode Settings To begin using the InfinitiKloud SD, simply plug in the provided USB. The InfinitiKloud will appear in your folders. Open your folders (“File Explorer” for PC, and “Finder” for Mac), and click on the InfinitiKloud icon to start up the program. To better protect the data that you have backed up, there is a passcode setting that allows you to create your own passcode. The private passcode must include 4 to 6 digits.