Hi @Zebryk, I suppose it depends on what functionality you are thinking of as both devices have analog inputs, analog outputs, and digital I/O with access to the same instruments within the WaveForms software. You'll be the only one that is able to decide if the price difference is worth it to you, but here is the primary list of things that the Analog Discovery Pro (I'm presuming you're referring to the ADP3450, ,) has that the Analog Discovery 3 does not. Two additional oscillo