The EzESC is a replacement for the ESC used in the Vortex 250 Pro quadcopter. It is a high-end 32-bit processor, using the latest FET and driver technology to create an ESC which is only 9.4mm wide. Also makes a great upgrade for the Vortex 285, which normally uses an older 12A design. With the 20A ESC larger motors can be used on the 285.