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Manufacturer : Speedy Bee / Référence : SB-F4V4-55-STACK

F405 V4 BLS 55A 30x30 Stack By SpeedyBee

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Shipping costs from 49€ pour France
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Technical characteristics

The fourth version of the SpeedyBee stack includes an FC F405 and a BLHeli_S 55A ESC. The 30x30mm stack can support up to eight motors, is configured via Bluetooth, has a bult-in barometer as well as an ICM42688P gyro.

The SpeedyBee F405 V4 stack is both complete and inexpensive, all with good performance.

Always equipped with a Bluetooth controller allowing settings via the mobile application, the stack also has a TVS diode protecting the electronics.

Integrated LEDs indicate the battery charge level and 2 3A BECs provide a 5V and 9V power supply.


  • MCU : STM32F405
  • IMU(Gyro) : ICM42688P
  • USB Port Type : Type-C
  • Barometer : Built-in
  • OSD Chip : AT7456E chip
  • BLE Bluetooth : Supported.
  • WIFI : Not supported
  • Compatible with DJI O3/RunCam Link/Caddx Vista/DJI Air Unit
  • ESC Signal : M1 - M4 on bottom side and M5-M8 on front side.
  • UART : 6 sets(UART1, UART2, UART3, UART4(Dedicated for Bluetooth connection)), UART5(Dedicated for ESC telemetry),UART6
  • ESC Telemetry : UART R5(UART5)
  • I2C Supported.
  • Traditional Betaflight LED Pad : Supported. 5V, G and LED pads on bottom of the front side. Used for WS2812 LED controlled by Betaflight firmware.
  • Buzzer : BZ+ and BZ- pad used for 5V Buzzer
  • Power Input : 3S - 6S Lipo
  • RSSI Input : Supported.
  • Smart Port / F.Port : Not supported
  • Firmware Target Name : SPEEDYBEEF405V4
  • Mounting : 30.5 x 30.5mm( 4mm hole diameter)
  • Dimension : 41.6(L) x 39.4(W) x 7.8(H)mm
  • Weight : 10.5g


  • Firmware : BLHeli_S J-H-40
  • Wireless Configuration : Full Configuration Supported in the SpeedyBee app
  • Continuous Current : 55A * 4
  • Burst Current : 70A(5seconds)
  • TVS Protective diode : Yes
  • External Capacitor : 1000uF Low ESR Capacitor(In the package)
  • ESC Protocol : DSHOT300/600
  • Power Input : 3-6S LiPo
  • Power Output : VBAT
  • Current Sensor : Support (Scale=386 Offset=0)
  • ESC Telemetry : Not supported
  • Mounting : 30.5 x 30.5mm( 4mm hole diameter)
  • Dimension : 45.6(L) * 44(W) * 8mm(H)
  • Weight : ~23.5g


  • 1x F405 V4 FC
  • 1x BLS 50A 4in1 ESC
  • 1x 35V 1000uF Capacitor
  • 5x M3 nylon nut
  • 5x M3 silicone o-ring
  • 5x M3*8mm grommet
  • 5x M3*8.1mm grommet
  • 1x Sh 1.0mm 15mm 8pin cable
  • 1x Sh 1.0mm 75mm 8pin cable
  • 5x M3*30 screw
  • 1x DJI 6pin cable
  • 1x XT60 power cable (70mm)
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Customer reviews

4.8/5 (11 notifications)
Par le 07/06/2024

A lot of power in combination with bluejay, after 30 batteries, i like it

Par le 04/06/2024

Tout bien

Par le 22/03/2024

Une des meilleurs stack simple d'utilisation que je connaisse.

Par le 19/03/2024

Très satisfait du matériel, juste un regret de notice française et les premières choses a faire avant installation. Genre de mettre a jour la carte .

Par le 14/03/2024


Par le 28/02/2024

Très bon produit.

Par le 20/01/2024

D apparence bien pas encore testé

Par le 20/01/2024

Je ne l'ai pas encore monté, les vis fournis avec la stack sont trop longues pour ma frame (hightcult) du coup j'attends de recevoir les nouvelles. En tout cas le packaging est quand même complet.

Par le 09/01/2024

Fc très fiable la 3 eme que je monte sur mes machines . Très bonne f4 . Pour les petit budget

Par le 09/01/2024

Not build in yet !

Par le 23/12/2023

best budget controller. everything works plug and play and nice.