Item Type: Stepper Motor Driver Material: Aluminum alloy Output Current: 1.4A Recommended Operating Current: 1.2A Microstep: 256 microstep subdivision Configuration: STEP, DIR OR UART Load Driving Voltage Range: 5-36V IC Logic Operating Voltage: 3.3V, 5V Package List 1 x Stepper Motor Driver 1 x Heat Sink 1 x Screwdriver 1Excellent Performance: Continuation of TMC series drivers with good silence and 16 expansions to 256 subdivisions inside the chip. 2Powerful Current: The stepper motor driver has a higher drive current, with a maximum peak current of 2.5A and a stable print current of 1.7A. 3Good Heat Dissipation: Compared with other TMC series drivers, this stepper motor driver has lower heating efficiency and better heat dissipation. 4Scope of Application: This stepper motor driver supports UART mode and is suitable for for MKS SGEN L without jumpers. 5Aluminum Alloy: This stepper motor driver is made of aluminum alloy material with high hardness, anti corrosion and anti rust, and long service life.