Features Original Stepper Motor Driver Chip: Utilizes original stepper motor driver chip and allows for easy current selection using DIP switch, ensuring precise control and optimal performance. Large Area Radiator: Equipped with a large area radiator, making it suitable for high temperature environments, providing enhanced durability and reliability. Seven Subdivisions Adjustable: Offers seven subdivisions adjustment with automatic half-current function to minimize heat generation, along with high-speed optocoupler isolation for seamless interface connectivity. Input Voltage Reverse Connection guard: Features input voltage reverse connection guard, compatible with stepper motors of type 42, 57, and 86, ensuring versatile and reliable operation. Advanced Interference and Overload guard: Boasts powerful anti-high frequency interference ability, and provides overheating, overcurrent, and short circuit guard for added safety and longevity. Specification: Item Type: Stepper Motor Driver Material: ABS Model: TB6600 Input Voltage: DC9-40V Temperature/Working Temperature: -10~45℃ Storage temperature: -40℃~70℃ Product Description and Parameters: 4A TB6600 stepper motor driver controller 9~40V TTL 16 microstep CNC 1 axis 2 or 4 phase stepper motor for 42, 57, 86 Function: This drive is an upgraded version TB6600 is the highest segment of the 32 market segments and is suitable for highly segmented applications. Applicable Stepping Motor: 42,57,86 type 2 Phase: 4 Phase(4 wire 6 wire line 8) 1. 9V-40V DC power supply; 2. H-bridge bipolar constant current drive; 3. Eight output currents are optional, Maximum Output Current: 4.0A; 4, 6 subdivision modes are available, up to 32 subdivisions; 5. High-speed optical isolation of input signs; 6. Common anode single pulse interface standard; 7. Offline hold function; 8. The semi-enclosed chassis can adapt to a harder environment; 9. Provide energy-saving semi-automatic current locking function; 10. Built-in temperature guard and overcurrent guard. Package List: 1 x Stepper Motor Driver Note: betweendiv>1. It is an updated version of TB6600 4A stepper motor driver.between/div>betweendiv>2. The practicality of this type is the same as the TB6600 4A drive, but its appearance is different from TB6600 4A stepper motor driver.between/div> Package List 1 x Stepper Motor Driver