The T-Motor F55A Pro III 4-in-1 ESC is a premium, 32-bit electronic speed controller designed for heavy-duty FPV drones and X8 configurations. It features 4x55A continuous current, 3-8S LiPo compatibility, AM32 firmware, and a built-in TVS protective diode to absorb voltage spikes.

Key Specifications

• Input Voltage: 3S - 8S LiPo

• Continuous Current: 4 × 55A

• Burst Current: 4 × 65A (10 seconds)

• Firmware: AM32

• Microcontroller: STM32G071

• MOSFETs: TPHR8504

• PWM Frequency Range: 16 - 128 kHz

• Telemetry Support: Yes

• Mounting Pattern: 30.5 × 30.5 mm (M3)

• Dimensions: 44 × 40 × 7.5 mm

• Weight: 17.8g (including heatsink)  

Notable Features  

• Advanced Cooling: Designed with a dual oxide heat sink to efficiently dissipate heat and keep the board running cool under heavy loads.

• Wide PWM Frequency: Automatically matches frequency with motor KV to achieve smoother and more efficient flight performance.

• High Durability: Features premium imported materials and TVS (Transient Voltage Suppression) protection to safeguard against electrical damage.

• Plug & Play: Perfectly designed to pair with T-Motor's F7 Pro flight controller for a streamlined installation