The item is a professional and practical TB6560 3A Driver Board CNC Router, which is mainly made of durable PCB board, plastic and metal materials, and adopts the TB6560AHQ chip with low voltage shutdown, overheating stop and over current protection circuit to ensure optimal performance. It is suitable for two-phase within 42,57 stepping 3A /four-phase /line/six-wire stepper motor, and is not suitable for more than 3A stepper motor. Features - Model: TB6560. - - Material: durable PCB board, plastic and metal. - Size (L*W*H): about 75*50*35mm /2.95"*1.96"*1.37". - and 3A Driver Board CNC Router 1 Stepper Motor Driver Board. - Rated maximum output: ± 3A, peak 3.5A. - Working voltage DC 10V-35V. - Recommended to a switching power supply DC24V power supply. - the TB6560AHQ chip with low voltage shutdown, overheating stop and over current protection circuit to ensure optimal performance. - Suitable for two-phase within 42,57 stepping 3A /four-phase line four /six-wire stepper motor, and is not suitable for more than 3A stepper motor. Automatic half current function. - 6N137 high-speed optical coupling, high without losing step. - Subdivision: whole step, half-step, step 1/8, 1/16 step, a maximum of 16 . - Support Automatic half current function. Features Similar Products 1. Current grade-by-adjustable to meet your demand for a variety of applications. 2. Semi-automatic flow adjustable. 3. 6N137 high-speed optical coupling, high without losing step. 4. printed setup instructions operation without manual also. 5. Thick teeth radiator, good heat dissipation. Package list: 1 * TB6560 3A Driver Board CNC Router 1 Stepper Motor Driver Board (Green)