Skystars F411 + KO40 Mini HD Stack (40A / 20x20 / BLHeli_S / 3-6S)

Regular price $69.99

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Introducing the F411 40A mini stack from Skystars. It features large soldering pads to facilitate soldering and avoid messes. It also includes a powerful BEC to supply all your electronics with the proper amount of voltage. 



  • Solder pads are the largest in size compared to other FC in the market.
  • Proper solder pad spacing to avoid solder bridge and facilitate easy soldering. 
  • ESC connector on top-side rather than bottom which makes it easy for repair.
  • TVS Diode for Reverse Polarity Protection and Voltage Spike Suppression.
  • Powerful BEC to supply all your electronics. 
  • Pads arrangement are executed in such a way that when you twist the wires of the camera VTX and RX you don't get any wire overlapping this gives you a uniform twist and clean look.
  • DJI connector on the bottom side.
  • Budget-friendly price ( We understand the situation of chip shortage and rising prices of FC )
  • Two stages of Quality check to reduce any faulty electronics. 
  • No power lines near Gyro to avoid any EMI interference. 
  • Comes ready with I2C support and INAV.



Flight Controller:

  • Item name: F411 Mini HD 
  • Input voltage: 3-6S LiPo (11.1V~22.2V)
  • MCU: STM32F411
  • IMU: BMI270 (SPI)
  • OSD: AT7456E
  • Uarts: 2
  • 1 software UART3
  • Receiver: CRSF/SBUS/IBUS/DSM
  • Barometer: NO
  • Buzzer Pad: YES
  • CURR Pad: YES
  • BEC 5V 2A
  • Blackbox: 16MB
  • Firmware: Betaflight SKYSTARSF411 / INav SKYSTARSF411HD
  • Mounting Holes: 20 x 20mm / M2
  • Weight: 4.3g



  • Item Name: KO40 40A 4IN1 ESC
  • Input voltage: 3-6S LiPo
  • Con. Current: 40A
  • Peak Current: 45A≥ 10S
  • Firmware: BLHeli_S
  • Support: DShot 300/600
  • Mounting holes: 20 x 20mm / M2
  • BEC: No
  • Product size: 31 x 30 x 6.9mm
  • Weight: 5.4g





(1) Skystars F411 + KO40 Mini HD Stack
(1) Power Leads (Red & Black / 14 AWG)
(1) XT60-H Male Connector
(1) 25v / 470uf Capacitor
(4) M2 Screws
(4) M2 Plastic Nuts
(4) Grommets
(1) 6-Pin Cable
(1) 8-Pin Cable



  • Manufacturer upgrades, alterations, and processor/firmware changes are frequently made without prior notice. Exact specifications, photos, and links cannot be guaranteed. 



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