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SpeedyBee · Flight stack (FC + ESC)

SpeedyBee F405 Mini stack

20x20 mm stack rated at 35 A.

Specification last checked 2026-07-27

  • Stack mounting pattern20 × 20 mmHole spacing of the mounting pattern.
  • Supported receiver protocolsCRSF, SBUS, F.Port, IBUS, GHST, SRXL2Decides what it fits
  • Minimum cell count3 SDecides what it fits
  • Maximum cell count6 SDecides what it fits
Compatibility

What this fits

Checked against every other product in the catalog by the same engine the planner runs, rule by rule. Where a specification is missing the answer is unknown, which is a different answer from compatible.

Frame

Does not work with (9)Works with (9)2 not yet judged
Show the 2 we cannot judge yet, because a deciding specification is not recorded

Receiver

Works with (20)

Battery

Does not work with (11)17 not yet judged
Show the 17 we cannot judge yet, because a deciding specification is not recorded

FPV camera

23 not yet judged
Show the 23 we cannot judge yet, because a deciding specification is not recorded

Goggles

23 not yet judged
Show the 23 we cannot judge yet, because a deciding specification is not recorded
Offers

Where to buy

This listing does not say which warehouse ships it. Most orders leave China, so expect import VAT and a carrier handling fee unless an EU warehouse is chosen at checkout.

No current price: our own estimate is 600 SEK. It is a rough street figure rather than a quote, and the retailer above confirms the real one.

Some links on this page earn us a commission at no extra cost to you, and that never affects any verdict on it. How this is funded.

Evidence

Recorded specification

Every value carries the source it was read from. A property with no recorded source is marked as such rather than presented as a fact. If one of them is wrong, tell us: it is the fastest way it gets fixed.

PropertyValueSource
Stack mounting pattern decides fitHole spacing of the mounting pattern.20 × 20 mmOscar Liangchecked 2026-07-27Quote 1, below the table
Supported receiver protocols decides fitCRSFSBUSF.PortIBUSGHSTSRXL2Betaflight firmware: src/main/rx/rx.hchecked 2026-07-27Quote 2, below the table
Minimum cell count decides fit3 SSpeedyBee product specificationschecked 2026-07-27Quote 3, below the table
Maximum cell count decides fit6 SSpeedyBee product specificationschecked 2026-07-27Quote 3, below the table
Continuous current decides fitAmps per motor the ESC sustains continuously. Vendors also quote a higher burst figure; this is the continuous one, the number that limits which motors the board can feed.35 ASpeedyBee product specificationschecked 2026-07-27Quote 3, below the table
ESC firmwareDecides the configurator and the features, like bidirectional DShot for RPM filtering. Bluejay runs on BLHeli_S hardware but is its own firmware, so both names appear on the same box.BLHeli_SSpeedyBee product specificationschecked 2026-07-27Quote 3, below the table
  1. Oscar Liangchecked 2026-07-27Speedybee F405 Mini - 20x20mm format, 35A rating, under $60
  2. Betaflight firmware: src/main/rx/rx.hchecked 2026-07-27typedef enum { SERIALRX_NONE = 0, SERIALRX_SPEKTRUM2048 = 1, SERIALRX_SBUS = 2, SERIALRX_SUMD = 3, SERIALRX_SUMH = 4, SERIALRX_XBUS_MODE_B = 5, SERIALRX_XBUS_MODE_B_RJ01 = 6, SERIALRX_IBUS = 7, SERIALRX_JETIEXBUS = 8, SERIALRX_CRSF = 9, SERIALRX_SRXL = 10, SERIALRX_TARGET_CUSTOM = 11, SERIALRX_FPORT = 12, SERIALRX_SRXL2 = 13, SERIALRX_GHST = 14, SERIALRX_SPEKTRUM1024 = 15, SERIALRX_MAVLINK = 16 } SerialRXType;
  3. SpeedyBee product specificationschecked 2026-07-27Product Name SpeedyBee 35A BLHeli_S Mini V2 4-in-1 ESC; Firmware BLHeli_S J-H-40; Continuous Current 35A * 4; Burst Current 45A(5seconds); Power Input 3-6S LiPo
Guides

The standards this part is judged by

What the properties above actually mean, which differences are absolute, and where the names used in shops mislead.