This package comes with "2 ESCs"

HOBBYWING ESC
Master of Multicopter
Dual Pack ="2 X ESCs"

Model: XROTOR ESC	40A	PRO 40A	PRO 40A (COB)
MAP	$17.99	$49.99	$49.99
SKU	30901001	30902042	30902041
Comes with	1 ESC	2 ESCs	2 ESCs
Cont./Peak Current	40A/60A	40A/60A	40A/60A
Multicopter Applicable	550/650 Class Quadcopter	550/650 Class Quadcopter	550/650 Class Quadcopter
Input /	2S-6S	3-6S Lipo	3-6S Lipo
Bullet connector size	3.5mm	3.5mm	3.5mm
BEC Type / BEC Output	NO	NO	NO
Programming item	Timing (High/Intermediate),	ON/OFF of the DEO function	ON/OFF of the DEO function
Size / Weight	68 x 25 x 8.7mm 26g (0.92oz)	66x21.8x11mm ~12.4mm @ capacitor 26g (0.92oz) 50g	73.5x21.8x11mm ~12.4mm @ capacitor 26g (0.92oz) 45g

Special core program for multi-rotor controllers greatly improves throttle response.
Specially optimized software for excellent compatibility with disc-type motors.
All settings except the "Timing" are preset, making usage simple, highly intelligent and adaptive.
The twisted-pair design of the throttle signal cable effectively reduces the crosstalk produced in signal transmission and makes flight more stable.
Compatible with various flight-control systems and supports a signal frequency of up to 621Hz (Note: all throttle signals over 500Hz are non-standard signals) .
Special drive chip has much better MOSFET driving effect than common driving circuit consisted of discrete components.
MOSFET with extra-low resistance brings high performance and great current endurance.

Model: XROTOR ESC	PRO 40A	PRO 40A (COB)
SKU	30902005	30902004
Cont./Peak Current	40A/60A	40A/60A
Multicopter Applicable	550/650 Class Quadcopter	550/650 Class Quadcopter
Input /	3-6S Lipo	3-6S Lipo
Bullet connector size	3mm	3mm
BEC Type / BEC Output	NO	NO
Programming item	ON/OFF of the DEO function	ON/OFF of the DEO function
Size / Weight	66x21.8x11mm 50g	73.5x21.8x11mm 45g

*OPTO: there is no built-in BEC
COB: You can connect your motor wire 'directly' to the ESC. so there is no motor wire coming out of the ESC

Official Warranty Available through HobbywingDirect.com & FS authorized dealer network in North America
For more information: http://www.HobbywingDirect.com/pages/rma

Optional devices

Manual Download or Online troubleshooting

HOBBYWING ESCMaster of MulticopterDual Pack ="2 X ESCs"

Optional devices

Related Links

HOBBYWING ESC
Master of Multicopter
Dual Pack ="2 X ESCs"

XRotor PRO User manual