High quality!!! wantai cnc 3D printer Stepper Motor Driver SD-2H086MB Product No.: N2008531225333 Features Low cost and good high-speed torque 14 selectable resolutions Supply voltage up to +80VDC Suitable for-2-phase and 4-phase motors Output current up to 5.86A Dip switch current setting 8different values Optically isolated input signals Pulse frequency up to 200KHz Automatic idle-current reduction Small size (107*97*48),Weight:1KG We are specializing in Stepper motor, Brushless DC Motor, Stepper Geared Motor, Power Supply, Control Board and the Control System.Our company has powerful technology, mature technics and complete testing equipment. And we have obtained ISO9001:2000 certification, CE certification and all of our products conform to RoHS requirements. Please join us! Working together, growing together! Changzhou Wantai Electrical Appliance Co., Ltd Kaly MSN: [email protected] Skype:kalyred My web site:http://www.wantmotor.com The link of my store: http://www.dhgate.com/wholesale/products/ff8080813b45a570013b5f450b8b04c8.html#prod-seller-store