HAKRC 40A 32-bit 4-in-1 Mini ESC – 2-6S, BLHeli_32, 20x20mm Mount, for FPV Drones

Overview

The HAKRC 40A 32-bit 4-in-1 ESC is a high-efficiency mini electronic speed controller designed for FPV racing drones. With a compact 20x20mm mounting pattern and support for 2–6S LiPo batteries, this ESC is ideal for lightweight builds. It features the STM32F051 main control chip running at 48MHz, imported MOSFETs, and a triple-driver IC for smooth motor control and low noise. The board is built using a 6-layer PCB with 3oz thick copper for enhanced current handling and thermal performance.

Key Features

• 32-bit STM32F051 MCU running at 48MHz for responsive control

• Imported MOSFETs & Ceramic Capacitors for stable, high-speed power delivery

• 3oz thick copper PCB, 6-layer design with metal edge protection

• Ultra-compact 20x20mm mounting hole spacing

• High Compatibility with BLHeli_32 firmware and multiple signal protocols

Specifications

Application

Designed specifically for 20x20mm mounting FPV racing drones, cinewhoops, and lightweight freestyle builds. The HAKRC 40A 4-in-1 ESC is compatible with all modern flight controllers and offers reliable 32-bit performance in a compact footprint.