Item Type: Driver board + stepper motorRated Voltae: DC5V3C Rated Voltae Rane: DC 36V or lessRated Power: 5WPull-in Frequency Without Load: 600Hz* Step anle: 5.625 x 1/64No-Load Pull-out Frequency: 1000HzTraction Torsion: = 34.3mN.m (120Hz)Brakin Torsion: = 34.3mN.mDC Resistance: 2007% (25C)Insulation Resistance: 10M (500V)Dielectric Strenth: 600V AC / 1mA / 1sTemperature Rise: +40K (120Hz)Noise: +40dB (120Hz, no load, 10cm)15V 4 phase reduction stepper motor 28BYJ-48 is with ULN2003 driver board. 2The driver board has A, B, C, D four-phase LEDs, used to indicate the workin state of the stepper motor. 3Stepper motor with standard interface can be directly plued in and used, wear-resistant and reliable. 4With excellent mechanical stability, driver board can directly replace the old or damaed parts to improve stepper motor's performance. 5And stepper motor and its driver board installation is simple, not requires particularly complicated operations.4 x Driver Board4 x Stepper Motor