This is the new Tunze Turbelle Stream 6255, a self optimizing powerhead designed to give a more random flow pattern throughout your tank.  In addition to being controllable via existing Multicontrollers, the pump is configured to target the most energy efficient motor operating level depending on your desired flow level.  Tunze is claiming a significant improvement on energy consumption but we have yet to see whether that is on legacy pump technologies or compared to something newer like Ecotech’s Ecosmart system.  I don’t know about you, but I’m eager to get my hands on one of these to check with a Kill-A-Watt.