Specification: Origin: Mainland China Condition: New 1.Stepping Motor Constant Voltage: DC5V Four-Phase Reduction Ratio: 1/64 Step Torque Angle: 5.625.64 Dc Resistance: 200±7%(25) Insulation Resistance: >10m(500v) Dielectric Strength: 600VAC/1ma/1s 2.ULN2003 Driver Board Input Voltage: 5v-12v Maximum Output Current: 500mA Input Interface: Ttl Logic Level Input Signal Output Channels: 7 Output Channels External Power Supply Interface: With External Power Supply Interface Product Size: Green Board: 36*32*12mm/1.4*1.25*0.47in Blue Board: 41*21*12mm/1.6*0.82*0.47in Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 01: 1*Stepping Motor + Driver Board (Green Board) 02: 1*Stepping Motor + Driver Board (Blue Board) 03: 1*Driver Board (Green Board) 04: 1*Driver Board (Blue Board) 05: 1*Stepper Motor 1.Wide Compatibility: The 5V stepper motor is a common specification, making it highly compatible with the ULN2003 driver board. Whether used in DIY projects or industrial applications, this combination offers broad compatibility and versatility. 2.Easy to Use: The ULN2003 4-phase driver board features clear pin labeling and interface layout, ensuring ease of use and connectivity. It requires no complex external components or circuits; simply connect the appropriate power source and control signals to drive the load. 3.Low Voltage Operation: The DC 5V stepper motor can operate at lower voltages, providing convenience in power supply. Compared to other high-voltage stepper motors, the 5V variant has lower power requirements, making it more suitable for small electronic devices. 4.High Current Output Capability: The built-in ULN2003 chip in the 4-phase driver board offers a maximum output current of up to 500mA per channel. This capability enables it to drive higher current loads such as relays, stepper motors, and more. 5.Multiple Output Channels: The ULN2003 driver controller board typically features 7 output channels, corresponding to the 7 output pins of the ULN2003 chip. This allows users to control multiple loads simultaneously, providing greater flexibility and expandability.