FAN hubs can be tricky. Phanteks is the only one that I know of that works with both PWM and DCV signals powering 3 pin DCV fans. I have been using them for about 18 months.... have 5 of them. The new NZXT one is better than the old one but was not able to get a description from the rep who visits here in just how it differs from the Phanteks.
Not sure how the TT one works.... Both Swiftech and ModMyToys have PWM to PWM ones. ModMyToys also has DCV to DCV ones.
You don't want to be ganging too many Corsair PWM fans on a single PWM hub as after 4 or 5, you start too lose speed control... Phanteks, Noctua, Swiftech PWM fans run just fine.
Remember the hub tho only works when you want all fans running at the same % of full speed...