iFlight Blitz ATF435 E55S 2-6S Stack/Combo (ATF435 FC/ 55A 8Bit 4in1 ESC) - 30x30Please note, this Flight Controller is based on the ATF435 chip opposed the the F4's and F7's most of the community is used to. Downloading new drivers and using custom targets may be required. As long as your BetaFlight 10. 10 you should be good to go! The iFlight Blitz ATF435 Stack Combo provides dependable performance and efficient control of your 2 6S powered quadcopter. This 30x30 stack combo features an ATF435 FC and 55A 8Bit 4in1 ESC to give