1. The current level can be adjusted step by step to meet various application needs. 2. Automatic half-step adjustable. 3. Uses a 6N137 high-speed optocoupler for high-speed synchronization. 4. Clear on-board labeling enables operation without additional instructions. 5. Features a thick, fine-toothed heatsink for effective heat dissipation. Working voltage: DC 10V–35V. Recommended power supply: switching power supply, DC 24V. Uses Toshiba TB6560AHQ driver IC with built-in low-voltage shutdown, thermal shutdown, and overcurrent protection. Rated maximum output current: ±3A; peak current: 3.5A. Compatible with two-phase, four-phase, four-wire, and six-wire stepper motors (NEMA 17–23 size, up to 3A rated current). Not suitable for motors exceeding 3A. Automatic semi-step function. Microstepping modes: full step, half step, 1/8 step, 1/16 step (up to 16 subdivisions). Color: As shown. Material: PCB. Dimensions: Approx. 50 × 75 × 35 mm (W × L × H). Package includes: 1 x motor driver board with accessories. Note: Slight variations in appearance, color, or silkscreen between batches may occur — these do not affect functionality or performance. Before powering on, carefully verify all wiring connections. Incorrect wiring may damage the driver. Do not set the current higher than the motor’s rated current.