The Motoron M2S18v20 Dual High-Power Motor Controller Shield for Arduino makes it easy to control two high-power DC motors from an Arduino or Arduino-compatible board through an I²C interface. The M2S18v20 supports motor supply voltages from 6.5 V to 30 V and can deliver continuous output currents up to 20 A per motor. This version ships with a variety of header pin and terminal block options included but not soldered in.