iFlight BLITZ Mini F7 Stack (E55S Mini 4-in-1 ESC)

The iFlight BLITZ Mini F7 Stack pairs a feature-rich F722 flight controller with a high-current 55A E55S 4-in-1 ESC in a space-saving 20x20mm footprint. Designed for aggressive 5-inch freestyle quads, racing builds, and high-power cinewhoops running HD video systems, this stack delivers heavy-duty power handling without the bulk or weight of a full-size 30.5x30.5mm setup.

Key features

• High-performance STM32F722 MCU easily handles complex Betaflight RPM filtering and high PID loop frequencies.
• Dual BEC outputs (5V/2.5A and 9V/2A) provide clean, dedicated power for digital systems like the DJI O3 Air Unit, Walksnail Avatar, or Caddx Vista.
• 16MB of onboard Blackbox flash memory ensures you can capture complete flight data for tuning and diagnostics.
• E55S 55A ESC runs on BLHeli_S/Bluejay firmware, fully supporting bidirectional DShot for accurate motor control.
• Convenient plug-and-play sockets for the digital VTX, receiver, and camera reduce soldering requirements.

Specifications

• Flight Controller: STM32F722 MCU
• Gyro: BMI270
• ESC Continuous Current: 55A (65A Burst)
• Input Voltage: 2-6S LiPo
• BEC Output: 5V 2.5A, 9V 2A
• Mounting Size: 20x20mm (M3 holes)
• UARTs: 6
• Blackbox: 16MB Flash
• Supported Firmware: Betaflight (Target: IFLIGHT_BLITZ_F722)
• ESC Firmware: BLHeli_S, Bluejay
• Total Weight: 15.5g

This stack requires an M3 mounting configuration. Ensure your frame accommodates a 20x20mm mounting pattern with sufficient vertical clearance for both boards, the XT60 pigtail, and the connecting wiring harness.