iFlight BLITZ Mini F7 Stack (E55 Mini 4-in-1 ESC)

The iFlight BLITZ Mini F7 Stack provides high-current power delivery and F7 processing in a compact 20x20mm footprint. Pairing the BLITZ Mini F7 flight controller with the 55A E55 4-in-1 ESC, this stack is purpose-built to drive 5-inch freestyle and racing quads where frame space is at a premium but full-size electrical performance is required.

Key features

• Plug-and-play digital HD VTX connector for clean integration with DJI O3, Walksnail, or HDZero setups.

• Dual onboard BECs supply clean power to both heavy-draw video transmitters and standard 5V logic peripherals.

• Six full hardware UARTs offer extensive support for receivers, GPS modules, and external sensors without inversion issues.

• ESC delivers 55A continuous and 65A burst current per channel, easily handling the aggressive throttle punches of high-kV 6S motors.

Specifications

• MCU: STM32F722

• Gyro: BMI270

• Mounting pattern: 20x20mm (3mm hole diameter)

• Input voltage: 2-6S LiPo

• ESC continuous current: 55A

• ESC burst current: 65A

• BEC output: 5V/2.5A, 9V/2A

• UARTs: 6

• Blackbox: 16MB onboard Flash

• Supported firmware: Betaflight

Pre-soldered with a robust XT60 pigtail and including an external capacitor, this stack drops cleanly into modern tight-clearance frames while leaving ample room for wire routing.