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Amazon.com: RepRap Champion 5 PCS Allegro A4988 StepStick Stepper Motor Drivers for 3D Printer Electronics, CNC Machine or Robotics : Industrial & Scientific
A4979GLPTR-T Allegro Microsystems | Allegro Microsystems A4979GLPTR-T, Stepper Motor Driver IC, 50 V 1.5A 28-Pin, TSSOP | 172-9289 | RS Components
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A3977SLPTR-T Allegro Microsystems | Allegro Microsystems A3977SLPTR-T, Stepper Motor Driver IC, 35 V 2.5A 28-Pin, TSSOP | 680-7208P | RS Components
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A3966SLBTR-T Allegro Microsystems | Allegro Microsystems A3966SLBTR-T, Stepper Motor Driver IC, 30 V 0.65A 16-Pin, SOIC W | 172-9264 | RS Components
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