Detail: 
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<br /> *TMC2100 Stepper Driver Module for Makerbot 3D Printer. 
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<br />*Ideal for driving the following 8 V ~ 35 V 2 A stepper motor. 
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<br /> *5 different step modes: full, half, 1/4, 1/8 and 1/16. 
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<br /> *Overheat shutdown circuit,undervoltage lockout and cross current protection. 
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<br /> *Adjustable potentiometer can adjust the maximum current output, in order to obtain a higher step rate. 
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<br /> *Automatic current attenuation mode detection/selection. 
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<br /> *Item Condition:100% Brand New 
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<br /> *Color: As Pictures Show 
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<br /> *Dimension:15*2 mm/0.59  x 0.08   (Approx.) 
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<br /> *Can drive current: 2A 
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<br /> *Breakdown: 16 subdivision 
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<br /> Package Contents: 
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<br /> 1*TMC2100 Stepper Driver Module 
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<br /> Notes: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.