Before I do something horribly wrong... I am about to connect a SkyFi 3 to a Nexstar+ hand controller and I don't want to cause the end of the universe (if a butterfly flaps its wings and we get hurricanes, if I smoke a hand controller then the Large Hadron Collider is obviously going to swallow this universe! ... Not a slippery slope at all)
Do I use a standard USB 2.0 A Male to USB 2.0 Mini-B?
Or an On The Go (OTG) spec cable?
The Quick Start Guide doesn't talk about USB cables a whole lot (except for plugging into mounts with a B plug, with clarifications for iOptiron and Meade). But there is a lot of bold about things going badly is you get the connection wrong.