The NXP® K20D72M Tower® MCU Module (TWR-K20D72M) is a low-cost evaluation, demonstration and development board, which features the Kinetis® K20 72 MHz low-power MCU. * Based on the Arm® Cortex®-M4 architecture with USB 2.0 full-speed OTG controller. * The TWR-K20D72M MCU module can operate in standalone mode or as part of the Tower System, a modular development platform that enables rapid prototyping and tool re-use through reconfigurable hardware.