This is the new E-Flite 40-Amp Brushless V2 ESC.  E-flite's brushless ESC includes improved BEC capability, programmable voltage cutoff programming options such as auto-select cut-off voltage that automatically recognizes Lipo batteries or a Ni-CD/Ni-MH programable feature, programmable braking, thermal overload protection, advanced software and gold bullet connectors.

Key Features:

• Up to 40A continuous current with proper air flow
• Dual BEC regulators for use with up to 4 servos when using 3-Cell Li-Po and 10-Cell Ni-Cd/Ni-MH packs
• Programmable voltage cutoffs for 2â“3 Cell Li-Po or 6â“12 Cell Ni-Cd/Ni-MH packs
• Programmable motor braking
• Automatically sets correct motor timing
• Safe power-on mode prevents accidental starts
• Includes gold bullet connectors and extension wire leads for your motor

Specifications:
Brake: Yes, programmable
Continuous Maximum Current: 40A
Input Voltage: 7.2V - 14.4V Ni-Cd/Ni-MH or 7.4V - 11.1V Li-Po
Dimensions (WxLxH): 50mm (2 in) x 26mm (1 in) x 10mm (.4 in)
Weight: 20 g (.7 oz)
BEC Voltage: Dual BEC circuits
Auto Cutoff: Yes, programmable