1. very low Resistance . 2. High quality PCB with thick copper trace 3.Many parameter seted,meet different condition. Compatible motor ESC -SY60A for car1. High quality MOSFET with very low Resistance ,generate very low heat .2. High quality PCB with thick copper trace, have very low resistance to circuit .3. Several methods to set up parameter, can set up by prog. Box ,prog. Card, and stick .4. ...