Originally Posted by
DanceswithUnix
Antec list them as Tricool 120mm fans, which with the blue LED seem about impossible to get. Impossible at least at a sane price, I did see someone selling refurb ones for £100 but I'm going to guess you don't love the case that much.
Take a peek at how they are wired up. Are they a standard 3 of 4 pin fan connector going to the fan controller? Knowing Antec possibly one of the power plugs like you get on old hard drives, that's what my Antec 300 case came with at least.
I suspect you are going to have to try and find a substitute. Antec seem to do an argb 120mm 3 pin fan quite cheaply if that will plug into your fan controller, but it looks like your motherboard doesn't have any rgb headers to program the fan to only do blue.
Perhaps someone who knows RGB will have an idea how to tell a fan to be blue with the wrong motherboard. If one front fan is gone the other probably isn't far behind, so a matching pair might be a good idea anyway.