20x20mm DarwinFPV F411 F4 Flight Controller OSD with 5V BEC Output & 4in1 30A ESC 3-4S Stack for Cineape 25 BabyApe II RC Drone FPV Racing Introduction: DarwinFPV F411 3-4S 30A Stack is currently the cheapest stack in the FPV world, designed to reduce the budget of entry-level FPV drone as much as possible. At the same time, we have also filled the flight control and ESC with glue, which greatly reduces the risk of damage to components caused by frequent blow-ups by novices. In a word, if you want to assemble the stack by yourself, DarwinFPV F411 3-4S 30A stack is the most cost-effective one , none of them Features: 1) Compared with traditional stacks, we have treated the DarwinFPV 3-6S F411 3-4S 30A stack with glue to protect it, which greatly reduces the risk of damage to the stack due to contact with metal particles, fine sand and gravel, weeds or dewdrops, etc. 2) DarwinFPV 3-6S F411 3-4S 30A stack has built-in barometer and SD card slot, and reserves rich interfaces resource, which meet the needs of lightweight flight. 3)The FC integrates LC filter, which greatly reduces the VTX interference caused by system voltage changes when the drone accelerates and decelerates, and greatly improves the image stability. Specification: Brand: DarwinFPV Model: F411 FC 30A ESC Stack Item Name: F4 Flight Controller and 30A 4in1 ESC Stack --F411 Flight Controller MCU：STM32F411Gyro：MPU6500 OSD：AT7456E Black box：built-in SD Card slot Firmware：DARWINF411 BEC output：5V Input Voltage：3-6S LIPO Reserved Connector: 1x SBUS(RX1 inverter)、2x Uarts(1,2）、2x Softserial、1x I2C、1x RGB、1x Buzzer、1x USER(A15)、1x USB Pcb Size：37mm x 37mm Mounting Holes：20mm x 20mm、30.5mm x 30.5mm - It supports receivers of most protocols on the market, such as PPM, PWM, IBUS, SBUS, SPEKTRUM and CRSF of ELRS. --30A 4in1 ESC MCU：EFM8BB21Continuous Current：30A Peak Current：35A （10S） BEC output：Non Input voltage：3-4S LIPO Throttle Signal：Dshot600、Oneshot125 Current Sensor： Non MOS：3 x3 Target：G_H_30 PCB Size：29mm x 31mm Fixed Hole：20mm x 20mm Weight：4.9g Attention: Because the black box function of the target firmware "DARWINF411" is currently not compatible with Btaflight 4.3.0 and 4.3.1 (the black box function is expected to be added to the official version 4.3.2) If you need to use the black box urgently, please upgrade to the 4.4.0 development version or downgrade to 4.3.0_RC3 and below firmware version. Package Included: 1 x F411 Flight Controller 1x 30A 4in1 ESC 1 x 20AW power cable 1 x XT30 1 x cable pack 1 x 1.8cm 6Pin single SH1.0 wire 1 x sticker