Pros: No Pro's, both arrived in non-working condition

Cons: Presents themselves as a pro piece of equipment...they're not.

Overall Review: We purchased two of these to accompany two 120mm fans for our recording studio production booth build. Both arrived non working. One had a pin bent, the other, the materials so cheap, the controller knob doesn't work. Now we have to source again and replace the two in the booth....booth build now two weeks past due date thanks to two cheap Korean parts.