Welcome to our store! 1、RC Motor Driver: Good stability, excellent performance, easy disassembly and assembly, perfect replacement for your old or broken one. 2、Good Heat Dissipation: Made of exquisite shell which enhances heat dissipation performance and realizes maximum power conversion. 3、High Performance: The 775 brushed motor has high torque, low noise and high efficiency for maximum power conversion. 4、Parameter: The rated power is 150W, the working voltage is 7.4‑12V, the maximum speed: is 10000‑16000RPM, the length is 67mm/2.64in (without shaft). 5、Easy Installation: Reasonable design, easy installation and disassembly, suitable for all kinds of model boats and remote control boat DIY modifications. Item Type: RC Motor Driver Material: Iron, copper Color: Silver Rated Power: 150W Working Voltage: 7.4-12V Maximum Speed: 10000-16000RPM Length: Approx. 67mm/2.64in (without shaft) Diameter: Approx. 42mm/1.65n Shaft Length: Approx. 17mm/0.67in Shaft Diameter: Approx. 5mm/0.20in Application: Suitable for all kinds of model boats and remote control boat DIY modifications Includes: 1 x RC Motor Driver Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best customer service.