MFE Multirotor ESC 650 Specifications:Rated Voltage: 6S (22.2V)Rated Power: 550WContinuous/Burst (10s) Current: 25A/50AConnector: 3.5mm female bullet connectorTerminal: OT 2.5-4 (ring terminal)Weight: 49g MFE Multirotor ESC 1240 Specifications:Rated Voltage: 12S (44.4V)Rated Power: 440WContinuous/Peak (10s) Current: 20A/40AConnector: 3.5mm female banana plugTerminal: OT 2.5-4 (ring terminal)Weight: 53g MFE Multirotor ESC 12100 Specifications:Rated Voltage: 12S (44.4V)Rated Power: 2200WContinuous/Peak (10s) Current: 50A/100ABanana Connector: 4.0mm femaleTerminal: OT 4-4 (ring terminal)Dimensions: 76 x 45 x 14 mmWeight: 117g