power supply 48v 40a in stock Company Profile Dongguan Shengfeng Electronic Technology Co., Ltd is a high-tech enterprise specializing in development and production of 5v/12v/24v/36v/48v/60v power supply.Products are widely used in computer,miner,LED lighting,CCTV camera,3D printer,Audio,water pump,game machine,servo motor, stepper control,equipment and machine with good quality.And they are...