Skystars Turbo2020 KM55A 55A 3-6S BLHeli_32 4-in-1 ESC

The SkyStars Turbo2020 KM55A is a 4-in-1 ESC for compact FPV builds using 3-6S batteries. Its 20x20 mounting format suits installations that need four motor outputs without four separate ESC boards.

Key features

• 55 A current rating for matching the ESC to motor and propeller demand.
• BLHeli_32 firmware supports ESC setup through compatible flight-controller software.
• 3-6S input range covers common 4S and 6S FPV power systems.
• Four ESC channels are combined in one board, simplifying power and signal routing.
• 20x20 mounting suits frames and stacks using that hole pattern.

Specifications

• Mounting Size: 20x20 mm, M3
• ESC Current: 55 A
• Peak Current: 70 A (10s)
• Input Voltage: 3-6S
• ESC Firmware: BLHeli_32
• Protocols: DShot600/1200, telemetry (voltage, RPM, current)
• MOSFETs: 40 V, 5 x 6 mm
• BEC: None
• Dimensions: 35 x 47 x 6.5 mm
• Weight: 16.5 g
• Construction: 3 oz copper PCB, CNC aluminium shell
• In the box: ESC, 4 x M3 x 4 mm damping rubbers, XT60 connector with wires, two 8-pin harnesses (70 mm and 50 mm), 35 V 560 uF capacitor

Check the flight controller's signal, power and mounting requirements before installation, and keep motor-propeller current demand within the ESC rating.