MFE 3054 Servo Specifications:Voltage: 4.8V–6.0VMotor Type: Brushed motorHousing Material: Engineering plasticProduct Weight: 23gMaximum Torque: (4.8V) 3.2 kgf·cm | (6.0V) 3.8 kgf·cmNo-load Speed: (4.8V) 0.15 sec/60° | (6.0V) 0.13 sec/60° MFE 3054 Pro Servo Specifications:Voltage: 5V–8.4VMotor Type: Brushless motorHousing Material: Aviation-grade aluminum alloyProduct Weight: 26gMaximum Torque: (5V) 4.2 kgf·cm | (8.4V) 7.7 kgf·cmNo-load Speed: (5V) 0.15 sec/60° | (8.4V) 0.09 sec/60° MFE UBEC 6V 10A Specifications:Operating Voltage: 3S–14S LiPoContinuous Current: 10APeak Current: 20A (10s)Dimensions: 55 x 33 x 13 mmWeight: 57g