SubZeroTech has a look at the Sharka Corp Dual Voltage BayBus.
Today we're going to take a look at a dual voltage 6-port baybus from Sharka Corporation. This baby will give you complete control over all your fans! You can choose what voltage you want your fans at, being 7v or 12v. 7v will slow the fans down, for when you're not on your computer (or using a cpu-intensive program), you wont draw as much power (and it'll lower the decibel level).More information at SubZeroTech