Instruct: Classify the given Amazon review as either positive or negative.
Query: Good, but be sure to buy an adapter...

I had read that the trick is that the firewire port is how the unit draws its power. But oddly, even though this is SPECIFICALLY made for a Mac Mini, they don't include a wire that can plug into a Mac Mini. So, you also need to order a 800-400 adapter.Otherwise, once the adapter arrived I plugged everything in and it works.