The DYS 30Amp Mini Opto BLHeli Multi-Rotor Electronic Speed Controller has been designed specifically with multi-rotors in mind, fast throttle response, ultra-low resistance MOSFETs, small and lightweight, a thicker PCB for better heat dissipation and much more. Features: Designed specifically for multi-rotors Twisted servo cable to reduce interference Fast throttle response Low resistance MOSFETs Small and lightweight Thicker PCB for better heat dissipation Maximum refresh frequency up to 500Hz throttle signal, compatible with all flight controllers High-performance capacitor filter Package Includes: 1 x DYS 30Amp Mini Opto BLHeli Multi-Rotor Electronic Speed Controller (BLHeli Firmware) SN30A Category: Quad Copter & Multi Rotors