BitFenix
Alchemy 3pin x3 Fan adaptor extension 60cm - Black

Good but not right

The main problem with these is that the tacho wire is connected to all three fans. This will mean that the speed reading will be garbage.
The lengths are all wrong too - although, you cannot please everyone. Surely the primary use for these is going to be to run three rad fans on a single controller channel. That being the case, you want a long cable from the controller to the first plug and then two short hops (almost zero length) to the next two. The length doesn't make it useless (it just makes it less tidy) but the tacho issue means I have to mod these to make them useable.
The cloth braiding is very nice as has been said...but it's too loose.