Comes with a CD but you can download the same from their webpage. * This is good as my laptop does not have a CD player. What now after the download? * No clear starting point. After a while I managed to stumble across several PDF files. And this is where the "fun" begins. The "User's Guide" in PDF format, if you want to call it that, begins with extremely simplified information. Think "this is going to be easy” until you get to page 3 or 4. That's where the learning curve (gentle slope) turns into the face of Mount Everest! At best I'd say they skipped a few chapters (if not volumes of text). *They kind of started writing for someone who had never seen and didn't use the stuff and then moved on to writing notes for someone with a PhD in electrical engineering. If that's not too bad, there are pictures showing how to connect the wiring. There are WARNINGS on these images. Connect the wiring exactly as shown in the picture, otherwise you might blow something up. BUT IT IS IMPOSSIBLE TO MAKE A CONNECTION BECAUSE IT PREVENTS THE ALIGNMENT OF THE PINS! (You must have a video! Downloaded from their website. See all, I mean don't miss a thing.) Without a video and a BIG rewrite of their documentation, please don't buy this. You will hurt yourself or others if you frantically throw it across the room.
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