ITEM NAME:Double BTS7960B DC 43A Stepper Motor Driver H-Bridge PWM For Arduino Smart New 1 Descriptio n Description: - Specifications: Double BTS7960 Large Current (43 A) H Bridge Driver; 5V Isolate With MCU, And Effectively Protect MCU; 5V Power Indicator On Board; Voltage Indication Of Motor Driver Output End; Can Solder Heat Sink; Just Need Four Lines From MCU To Driver Module (GND. 5V. PWM1. PWM2); Isolation Chip 5 V Power Supply (Can Share With MCU 5 V); Size: 4 * 5 * 1.2cm; Able To Reverse The Motor Forward, Two PWM Input Frequency Up To 25kHZ; Two Heat Flow Passing Through An Error Signal Output; Isolated Chip 5V Power Supply (Can Be Shared With The MCU 5V), Can Also Use The On-Board 5V Supply; The Supply Voltage 5.5V To 27V Package Included: 1 * Stepper Motor Driver Whatever the ending's perfect or not, you can't disappear from my world Double BTS7960B DC 43A Stepper Motor Driver H-Bridge PWM For Arduino Smart New 1.Able To Reverse The Motor Forward, Two PWM Input Frequency Up To 25kHZ;. Double BTS7960 Large Current (43 A) H Bridge Driver;. Two Heat Flow Passing Through An Error Signal Output;. Just Need Four Lines From MCU To Driver Module (GND. ).