FTBO PX4 Pixhawk Lite V2.4.6 32Bits Open Source Flight Controller Based Pixhawk Flight Controller streamline and optimize this pixhawk board,easy to use and compatible V2.4.5 or V2.4.6 Removes some ports which unnecessary,like SPKT/DSM,BUZZER,CAN,SPI and USB pin port Combins ADC 3.3V and ADC 6.6V ports Size: 16.92*16.53inch 43x42mm Ship to USA via EUB, estimated delivery 5-10 days