SEQURE Blueson A1 6S 65A AM32 4-in-1 ESC (20×20)

SEQURE Blueson A1 6S 65A AM32 4-in-1 ESC (20×20) is a compact 4-in-1 speed controller for FPV quads that need a high-current ESC in a true 20×20 stack footprint. It suits 6S freestyle and racing builds where you want AM32 firmware support without moving to a larger 30×30 layout.

Key features

• 6S-ready 4-in-1 layout: one board drives all four motors, keeping wiring and stack height down versus four individual ESCs.

• 65A current rating: sized for high-load setups that can overwhelm 45–55A class 4-in-1 ESCs.

• AM32 firmware: chosen by pilots who want an open, actively developed ESC firmware ecosystem and AM32-compatible configurator support.

• 20×20 mounting: fits modern mini stacks and frames designed around 20×20 electronics spacing.

Specifications

• Brand: Sequre

• Mounting size: 20×20 mm

• Input voltage: 2-6S LiPo/LiHV

• ESC current: 65 A

• Peak current: 120 A

• ESC firmware: AM32

• Processor: AT32F421 (32-bit), PWM 8-128 kHz

• Protocols: DShot600/300/150, Oneshot, Multishot, PWM

• Telemetry and current sensor: Yes

• BEC: None

• Mounting holes: M3, 4 mm grommet holes

• Weight: 19 g

• In the box: ESC, two SH1.0 8-pin signal cables (40 mm and 60 mm), 2 x 12AWG 100 mm power cables, XT60H-M connector, 35 V 680 uF capacitor, 5 x M3 damping grommets

Match this ESC with a 20×20 flight controller/stack and check your frame’s ESC clearance; for demanding 6S motor/prop combos, allow airflow and conservative tuning to keep temperatures under control.