Introducing the unbeatable value of the new SpeedyBee F405 50A stack! For only $69.99, you will get an STM32F405 FC (better than F411), 50A 4-in-1 ESC, onboard 4-level battery life indicator, 4GB Blackbox SD card slot for your flight logs, 4 groups of LED strip pads, complete with a DJI plug for your digital quad, and built-in Bluetooth for wireless configuration on the SpeedyBee app. Don't forget about the powerful 50A 4-in-1 ESC, built with TVS protective diode, Japan made TDK SMT capacitors, external 1500uF low ESR capacitor, everything designed specifically for durable build and smooth flight. Top-shelf spec at a crazy low price, what are you waiting for? Built-in barometer for accurate height calculation SD Card slot can support up to 4GB Blackbox data* Dedicated DJI Air Unit connector for a quick digital build 9V 2A + 5V 2A individual BECs 4 x UARTs for your receiver + VTX + camera + GPS. Power your GPS with a USB cable - no battery needed. 22mm cutouts for FPV camera in your tight build