SpeedyBee F405 V4 stack
The default budget 30x30 stack for a 5-inch build: F405 controller plus a 55 A four-in-one ESC.
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.
| Property | Value | Source |
|---|---|---|
| Stack mounting pattern decides fitHole spacing of the mounting pattern. | 30.5 × 30.5 mm | SpeedyBee product specificationschecked 2026-07-27Quote 1, below the table |
| Supported receiver protocols decides fit | CRSFSBUSF.PortIBUSGHSTSRXL2 | Betaflight firmware: src/main/rx/rx.hchecked 2026-07-27Quote 2, below the table |
| Minimum cell count decides fit | 3 S | SpeedyBee product specificationschecked 2026-07-27Quote 1, below the table |
| Maximum cell count decides fit | 6 S | SpeedyBee product specificationschecked 2026-07-27Quote 1, below the table |
| Battery connector decides fit | XT60 | Oscar Liangchecked 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. | 55 A | SpeedyBee product specificationschecked 2026-07-27Quote 1, 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_S | SpeedyBee product specificationschecked 2026-07-27Quote 1, below the table |
- SpeedyBee product specificationschecked 2026-07-27
Product Name SpeedyBee F405 V4 30x30 Flight Controller MCU STM32F405 IMU(Gyro) ICM42688P Power Input 3S - 6S Lipo(Through G, BAT pins/pads from the 8-pin connector or 8-pads on the bottom side) 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 Product Name SpeedyBee BLS 55A 30x30 4-in-1 ESC Firmware BLHeli_S J-H-40 Continuous Current 55A * 4 Burst Current 70(10 seconds) Power Input 3-6S LiPo Mounting 30.5 x 30.5mm( 4mm hole diameter) Dimension 45.6(L) * 44(W) *8mm(H) Weight 23.5g
- Betaflight firmware: src/main/rx/rx.hchecked 2026-07-27
typedef 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;
- Oscar Liangchecked 2026-07-27
In the box, you will find the following accessories: A 35V 1000uF low ESR capacitor. XT60 pigtail (12AWG). Cables for DJI air units, DJI O3 and Vista. Bolts, rubber spacers, nylon nuts for mounting.
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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)?Not enough recorded specification (2)
All frame · All 20 frame checked against this flight stack (fc + esc)
- ×Does not work with (9)
This board mounts 30.5 × 30.5 mm and the frame accepts 25.5 × 25.5 mm.
Rule: Stack mounting pattern
- BetaFPV Meteor65 Air frame
- BetaFPV Meteor65 frame
- BetaFPV Meteor65 Micro brushless frame
- BetaFPV Meteor75 Air frame
- BetaFPV Pavo25 2.5" cinewhoop frame kit
- BetaFPV Pavo35 3.5" cinewhoop frame kit
- GEPRC CineLog 25 GEP-CL25 frame kit
- GEPRC CineLog30 V3 GEP-CL30 V3 frame kit
- GEPRC CineLog35 V3 GEP-CL35 V3 frame kit
- ✓Works with (9)
The frame accepts a 30.5 × 30.5 mm stack.
Rule: Stack mounting pattern
- ?Not enough recorded specification (2)
The mounting pattern of one of these is not recorded yet.
Rule: Stack mounting pattern
FPV camera
?Not enough recorded specification (23)
- ?Not enough recorded specification (23)
Not enough recorded specification to judge this combination.
Receiver
✓Works with (20)
All receiver · All 18 receiver checked against this flight stack (fc + esc)
- ✓Works with (16)
The flight controller supports CRSF.
- ✓Works with (4)
The flight controller supports SBUS.
Battery
×Does not work with (11)!Works, with a compromise (7)✓Works with (10)
All battery · All 19 battery checked against this flight stack (fc + esc)
- ×Does not work with (11)
1S is outside the 3–6S range SpeedyBee F405 V4 stack accepts.
- !Works, with a compromise (7)
XT30 does not match XT60. Re-soldering or an adapter is needed.
Rule: Battery connector match
- ✓Works with (8)
6S is inside the SpeedyBee F405 V4 stack supported range.
- ✓Works with (2)
4S is inside the SpeedyBee F405 V4 stack supported range.
Goggles
?Not enough recorded specification (23)
- ?Not enough recorded specification (23)
Not enough recorded specification to judge this combination.
Rule: Video system match
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.