The RS GEN3 SPEC is designed for Spec racing and offers professional performance at an affordable price. True ROAR Spec mode only, no timing or boost features are available. The RS SPEC brings racer-friendly tuning and flawless operation to the world of Spec racing. Packed with new features, the RS GEN3 SPEC provides an EZ Access Port for HotWire communication and Datalogging capabilities in a small sized package. Rated for 13.5 turn motors and higher, the GEN3 is the perfect ESC for both experienced and new racers. ROAR Spec Mode only, no Timing features Ultra-smooth and Precise Throttle and Braking Control Compatible with Sensored/Sensorless Brushless and Brushed Motors Easily Access Programming, Anywhere, Anytime Datalogging Capability EZ Access HotWire Programming Port HotWire PC Interface for Advanced Programming and Updating D2: Dual Drive Mode Technology On-Board Temperature Indicator HDAC: High Density Copper PCB's Sensor Plug for Precise Commutation with all Motors Gold-plated Solder Posts for Easy Wire Replacement Self Test Diagnostics and Factory Reset Pit Tune Mode DGF2: Digital Glitch Filtering V2 QuickTune™ Programming One-Touch Radio Calibration