ITEM NAME:High Quality TB6560 3A 10 files Driver Board CNC Router Single 1 axes Contr B4B3 High Quality TB6560 3A 10 files Driver Board CNC Router Single 1 axes Contr B4B3 This product has been thoroughly tested and has been applied to the engraving machine, SMT machines and other equipment, quality assurance, ease of use. Working voltage DC 10V-35V. Recommend the use of switching power supply DC24V. Using 6N137 high-speed optical coupling to ensure high speed without losing step. Toshiba TB6560AHQ new original chip, low-pressure shut-off, overheating and over-current protection circuit parking to ensure optimal performance.