The BLHeli 40A ESC is a high-performance electronic speed controller designed for use in multi-rotor drones, particularly those requiring robust power handling and precise motor control. These ESCs are compatible with various firmware versions, including BLHeli-S and BLHeli-32, offering flexibility in programming and customization.

FEATURES:

1. ALL DEVICES ARE ORIGINAL MADE , ENSURING THAT THE ESC HAS HIGH QUALITY AND HIGH RELIABILTY.
2. STRONG FLOW REISTANCE.
3. INPUT VOLTAGE ABNORMAL PROTECTION, BATTERY PROTECTION  , BATTERY LOW VOLTAGE PROTECTION , OVER HEAT PROTECTION.
4. ORDINARY START , SOFT START , ULTRA-SOFT START MODES , IT IS COMPATIBLE WITH FIXED WINGS AIRCRAFT AND HELICOPTER.

• 40A multi-aircraft electronic speed controller (ESC)
• Special core program for multi-rotor controllers
• Supports a signal frequency of up to 621 Hz
• Twisted-pair design throttle signal cable