he Hobbywing XRotor 40A 4-in-1 BLHeli_S equipped ESC is a high power output, incredibly capable, and compact ESC. Featuring high-performance 40A ESC's, a 5V 1.5A BEC, Amp/Volt Monitor port (for compatible Flight Controllers), the Xrotor 40A will surely be one of the premier choices for racers looking for nothing but the best in regards to performance. Spec Check: Continuous Current: 40A Input Voltage: 2s-5s LiPo BEC Output: 5V 1.5A Size (LxWxH): 42.6x36x4mm Supported Firmware: BLHeli_S Weight: 10g Processor: EMF8BB21F16G SILABS What's Included: XRotor 40A 4-in-1 ESC Nylon Standoffs XT60 Power Lead Capacitor Data Cables (HW30901076)