ITEM NAME:TB6600 Single Axis 4A Stepper Motor Driver Controller 9~40V Micro-Step Description: - Professional two-phase stepper motor drive - Positive and negative reversal control can be realized. Select 7-speed subdivision control (1,2/A,2/B,4,8,16,32) by 3-digit toggle switch and select 8-speed current control (0.5A, 1A, 1.5A, 2A, 2.5A, 2.8A, 3.0A, 3.5A) - Suitable for driving 20/28/35/39/42 hybrid stepping motors - Interface using high-speed isolation - Automatic half-flow reduces heat - Input voltage anti-reverse protection, over-current over-current protection - Input voltage: DC 9-40V - Output current: 0.5-4.0A - Breakdown: 1,2/A,2/B,4,8,16,32 Specification: - Material: Plastic + Metal - Size: 95*72*28mm/3.74*2.83*1.10mm Package Included: 1x TB6600 Stepper Motor Driver.1x TB6600 Stepper Motor Driver. - Professional two-phase stepper motor drive. - Output current: 0.5-4.0A. - Automatic half-flow reduces heat. - Size: 95 72 28mm/3.74 2.83 1.10mm.