"Around a year ago I (Robin B. Jensen) revealed Project CK, a 5-channel software-controlled fanbus.
A short while later I was contacted by Morten Givskov (d_morten), and we discussed lots of possible improvements before reaching this new version, which we have developed together.
d_morten is primarily responsible for the hardware part, while I’ve concentrated on the programming side.

Well, what is it?
Like Project CK it is a software-controlled fanbus with parallel port interface, but now with 8 channels and pulse-width-modulated outputs, which means that each output can be controlled a lot better than just 0-5-7-12 volts."