Description
Overview
The iFlight Borg 5S RX Stack combines the Borg 5S RX Flight Controller with the high-performance Borg 60R 4-in-1 ESC. creating a compact and powerful electronics system tailored for racing FPV drones. Designed for pilots who demand precision. stability. and reliable signal performance. this stack integrates a built-in ExpressLRS 2.4GHz receiver. advanced FPC-to-ESC connectivity. and support for up to 8S LIHV batteries.
With onboard 12V BEC switching. wide protocol compatibility (DJI MSP / HDZero / IRC Tramp / SmartAudio). and up to 60A continuous current per motor. this stack is the perfect solution for 5-inch and high-voltage racing builds.
Changelog – April 9. 2025: FC Dimensions updated from 34×28.5mm to 34×27mm.
Flight Controller (FC) Features
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Built-in ExpressLRS 2.4GHz Receiver with integrated antenna
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Supports external receivers and antennas for flexible configurations
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4S–8S LiPo / LIHV input range for competitive racing power setups
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Switchable 12V BEC (2A) for clean VTX power and remote shutdown
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FPC Ribbon Cable for secure FC-to-ESC connectivity
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SH1.0 connectors across other ports for reliable long-term use
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Compatible with DJI. Analog. HDZero video systems via multiple VTX protocols
FC Specifications
| Parameter | Details |
|---|---|
| Input Voltage | 4–8S (LIHV supported) |
| MCU | AT32F435RGT7 |
| Gyro | ICM42688 |
| Barometer | N/A |
| OSD Chip | AT7456E |
| Flash Memory | 16MB (Blackbox) |
| UART Ports | 4 |
| Motor Outputs | 4 |
| I2C Serial | Not Supported |
| VTX Protocols | DJI MSP / SmartAudio / IRC Tramp / HDZero |
| LED Controller | Yes |
| Beeper Pad | Yes |
| Firmware Target | IFLIGHT_BLITZ_ATF435 (Betaflight) |
| Mounting Pattern | 20×20mm / Φ4mm |
| Dimensions | 34 × 27mm ±1 |
| Weight | 6.8g ±1 |
| BEC Output | 5V 2.5A. 12V 2A (with VTX switch) |
FC Wiring Suggestion
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UART 1: VTX HD / Analog
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UART 2: ESC Telemetry
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UART 4: Built-in ELRS Receiver / SBUS input
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UART 5: GPS or other serial sensors
ESC Specifications – Borg 60R 4-in-1 ESC
| Parameter | Details |
|---|---|
| Input Voltage | 3–8S (LIHV supported) |
| Max Continuous Current | 60A |
| Max Burst Current | 65A (10 seconds) |
| MCU | STM32G071N |
| Driver | FD6288 |
| Firmware | BLHeli_32 (Target: IFLIGHT_BLITZ_G3 32.9) |
| Current Sensor | Not Available |
| BEC | None |
| Telemetry | Supported |
| Bidirectional DSHOT | Supported |
| Protocols Supported | DShot150/300/600. MultiShot. OneShot |
| Dimensions | 45 × 52mm ±1 |
| Mounting Holes | 20 × 20mm / Φ4mm |
| Weight | 14.5g ±1 |
Packing List
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1 × iFlight Borg 5S RX Flight Controller (with built-in ELRS)
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1 × iFlight Borg 60R 4-in-1 ESC
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1 × Cable Set
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5 × Silicone Grommets
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