ITEM NAME:2x 50A 50AMP 2-7S Brushless ESC Control Motor Speed Controller OPTO 5V 3A BEC Description: 100% Brand new and high quality Ultra-low impedance PCB board, powerful resistance to current With battery low voltage protection, overheat protection, throttle signal loss protection and other multiple protection Throttle stroke can be set, compatible with all remote controls on the market, flight control Material: Plastic, Electronic components Specification: Current Level: 50A Burst Current: 60A BEC: 5V / 3A Cells: 2-7S Li-ion/Lipo Ni-MH/Ni-Cd: 4-12NIMH Size Chart: Size: approx. 6.6 x 3.6cm/2.60 x 1.42inch Package Includes: 2 Pieces 50A Brushless ESC SKU: FUZ0023653519430019.2 Pieces 50A Brushless ESC. Current Level: 50A. BEC: 5V / 3A. Burst Current: 60A. Ultra-low impedance PCB board, powerful resistance to current. Size: approx. Size Chart.