Nema17 Stepper Motor 42 motor 1.5A 17HS4401S with TB6600 Stepper Motor Driver 17HS4401-S motor: compatible with DC 9-42V power supply, recommended DC12-24V Controller signal input voltage: 3.3-24V Subdivision accuracy: 1-32 step resolution selectable Output current: up to 4.0A H-bridge bipolar constant current drive Input signal with high-speed optocoupler isolation Built-in thermal and overcurrent protection Automatic half-current mode to reduce heat Motor noise optimization function Compact design for space saving Features: Material: Electrical components Color: As shown in pictures TB6600 Stepper Motor Driver: - Updated version supports 32-step microstepping - Maximum output current: 4.0A - Input voltage: DC 9-40V - H-bridge bipolar constant current drive - Six selectable microstepping modes up to 1/32 step - High-speed optical isolation on input signals - Standard common anode pulse interface - HOLD function for offline operation - Semi-closed housing design for improved durability - Semi-automatic current lock function - Built-in thermal and overcurrent protection Specifications: Size: 9.6 x 5.5 x 2.7 cm (3.88 x 2.17 x 1.06 inches) Quantity: 1 piece Package Included: 1 x 17HS4401-S Stepper Motor 1 x TB6600 Stepper Motor Driver 1 x 10cm Wire