This is the price inquiry on Taobao in China：520yuan
Starfire 57/86 Stepper Motor 2-Phase 3-Phase 860M Driver Open Loop Closed Loop Dual Axis Motor Driver Kit
Excellent quality assured purchase
Free shipping Quality Assurance
Including a full range of digital drivers and a full range of stepper motors you need us all have.
R&D team consisting of two PhDs leading five master's degree students
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