Thermaltake Rhythm - Watercooling for the HTPC
 

Although I think that they could have compromised and installed a digital pump flow and fan speed controller for the massive overclocking market out there, saying that I suppose the unit could be modified if you simply must have these functions but it would be very time consuming and costly, and as I was saying this is designed to function silently for the HTPC market and for this function Thermaltake has equipped rhythm with more than enough cooling capabilities

Link: http://www.xtremecomputing.co.uk/review.php?id=206