So what are people planning to power these with? I was thinking of getting a beefy laptop adapter and cutting the end off, but I'm not entirely sure how to wire it - all the cases I've seen seem to have something different.
Just get a normal PSU and buy molex splitters and cut the 12v wire off the split ends (leave the 5v safely attached).
So the two yellows into the same port that this guy has a red cable in:
And two blacks into where he has a black.
That makes sense, but then why is he additionally bridging those connectors? Wonder where I can get wire that diameter lose and not on a 30m cable