Here was my thought proses on this.
+ How long are those PSU cables really?
- Well I know that there exactly one Linus arm length and a bit long.
+ How long is that?
- Well I don't know.
+ Can you find out?
- Yes.
+ How?
- Well I could take something with known accurate dimensions, say for example the HTC one, and measure it off of that.
+ Wont that take a bit of time?
- Yes.
+ Can you do anything else?
- Yes
+ What is it?
- Well I could ask on the forum
+ Ok, do that then.
- Ok :D
So Linus, can you take 2 min out of your day and measure your arm and post it. I think it would help out the community a lot !