Feature:9V-40V DC power supplyH-bridge bipolar constant phase flow driverThe maximum output current is 4.0A (eight optional)Up to 32 segments of six kinds of sub-modes availableThe input signal high-speed photoelectric isolatioStandard common anode single pulse interfaceOffline keep functionSemi-enclosed chassis can adapt to a more demanding environmentProvide energy saving semiautomatic current lock functionBuilt-in thermal protection and over-current protectionNote:This driver is the upgraded version TB6600， heightening segment to 32 subdivision， suitable for high segmentation applications.For step motor: 42， 57， 86 type 2 phase 4 phase (4 / 6 / 8 line)Package included:1 x TB6600 Stepper Motor Driver Controller