Universal 2-8 Way Multi-rotor Power Distribution Hub Features: This is a power distribution hub specially designed for multi-rotor speed controller connection. Well matched with KK flight control unit, also can be used for other multi-rotor application. It makes the wiring of your multi-rotor system neater, nicer, securer. Installation method: 1. Weld the power input wires of ESCs to the hub, suggested inner circle for \+\, and outter circle for \-\. 2. Isolate the hub with tape or shrinking tube, or use double side tape to fix it to the main frame of your multi-rotor aircraft. Specifications: Max ESC number: 8 Size: 5 x 5cm Weight: 8g Fixing hole diameter: 3.5mm Includes/Requires: Includes: 1 x wiring hub * This is a PCB board for easier wiring purpose, and does not include ESC or other accessories.