Product Details 

• Voltage : 5V DC
• Model: 28BYJ-48
• No. of phase : 4
• Step angle : 5.625/64
• In-traction Torque  > 34.3mN.m(120Hz)
• Self-positioning Torque > 34.3mN.m
• Friction torque : 600-1200 gf.cm
• Pull in torque : 300 gf.cm
• Frequency : 100 Hz
• Reduction Ratio : 1/64

Description 

• Supporting the use of a direct plug and easy to use stepper motor used in the development board.
• ULN2003 stepper motor driver board:
• A, B, C, D four-phase LED indicates the status of the stepper motor work.
• Stepper motor with a standard interface, when used directly pluggable.