57 step motor kit 57BYG250D torque 2.5N.M long 100MM stepper motor + DM542 DC20V-50V 4.2A stepper motor driver

57 step motor kit 57BYG250D torque 2.5N.M long 100MM stepper motor + DM542 DC20V-50V 4.2A stepper motor driver
sku: 4000250435143
$39.92
Shipping from: China
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