These are belheli skylinker 40A esc with bec 5v 3A.Pre sold battery connector and esc connectorsHigh quality powerful esc Belheli version better than simonkIt gaves very quick throttle response.Current 40amp Max current 55ampVoltage : 2-3S LiPo BEC output: linear mode: 5V, 3AOutput plug: 3.5mm connectorPackage Included 1x 40amp esc

Skylinker 40amp belheli with bec 5v 3a