Q: What signal protocols does the SPECTER 90A ESC support?

A: It supports DShot150 / DShot300 / DShot600, as well as Oneshot and Multishot protocols, ensuring broad compatibility with modern flight controllers.

Q: Does the ESC have built-in protection features?

A: Yes, it comes with temperature protection and safety mechanisms to prevent overheating and hardware damage, ensuring safe and reliable performance.

Q: Will switching from a 4-in-1 ESC to this single ESC change how my drone flies?

A: The flight feel won’t change much, but power delivery becomes more consistent under load, especially during long or aggressive flights.

Q: I’ve had ESC burnouts before—does this reduce the chance of that happening?

A: Yes. Higher current capacity and better heat handling make it more resistant to spikes and overload.

Q: Is this ESC only for extreme builds like X8 or heavy-lift drones?

A: That’s where it shines, but it can also be used on high-performance single-stack builds where reliability matters.

Q: Will it run cooler than a 4-in-1 ESC in real flying?

A: Yes, because each ESC is isolated and has better airflow, especially noticeable in long flights.

Q: Does this ESC support modern flight controller protocols like DShot?

A: Yes, it supports DShot (including DShot600) and works with standard Betaflight setups.

Q: Can I use this ESC with 6S or even higher voltage setups?

A: Yes, it supports a wide voltage range (up to 8S), making it suitable for high-voltage builds.

Q: Will this ESC help with voltage drops during aggressive throttle?

A: Yes, it handles current spikes better, which helps keep power delivery stable.

Q: What’s the biggest advantage of using this ESC in a real build?

A: The main benefit is reliability under stress—less overheating, better current handling, and safer long-term use.

Q: What’s the most common mistake when installing a high-current ESC like this?

A: Poor wiring or insufficient cooling space, which can limit performance or cause issues.

hglrc specter 90a single esc high performance

New

HGLRC SPECTER 90A single ESC High-performance professional ESC

About HGLRC SPECTER 90A Single ESC:

The HGLRC SPECTER 90A Single ESC is a high-performance electronic speed controller designed for professional FPV racing and freestyle drones. Powered by BLHeli_32 32.9 firmware and a fast STM32G071 MCU, it supports multiple protocols such as DShot150/300/600, Oneshot, and Multishot, ensuring precise control and ultra-smooth flight response. With superior cooling design, dual MOSFET structure, and telemetry support, this ESC delivers reliable power output and real-time monitoring, making it an excellent choice for demanding pilots.

Check out our single ESC, all FPV ESC and the rest of our HGLRC Products!

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$ 43.99 ~~$56.99~~

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24-Month Warranty | 2 Years Full Protection
30-Day Returns From Shipment | 7-Day No-Reason Returns
24h Support Response | 24h Fast Support Guarantee

Top highlights

CNC aluminum housing for durability and cooling.
90A continuous / 100A peak current output.
BLHeli_32 firmware with telemetry support.
STM32G071 MCU with 64MHz clock speed.
Lightweight design, supports 2–8S power systems.

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Dual-Sided CNC Aluminum Case for Efficient Cooling

The full CNC aluminum shell provides excellent heat dissipation and effective protection against dust and debris, ensuring stable performance during extended flights.

Dual MOSFET Design for Powerful Current Handling

Equipped with dual MOSFET architecture, the ESC supports a continuous current of 90A and peak bursts up to 100A, delivering strong and consistent power for racing and freestyle maneuvers.

BLHeli_32 Telemetry Support

With built-in BL32 ESC telemetry, pilots can monitor critical flight data such as temperature and current in real time, allowing for better optimization and safer flights.

High-Performance STM32G071 MCU (64MHz)

Featuring the STM32G071 microcontroller with up to 64MHz clock speed, the ESC ensures ultra-fast response, precise motor control, and improved flight stability.

Used with HGLRC distribution board

Reviews

H*********r
Verified

Replaced my old burnt-out ESCs with these HGLRC 90A singles. The build quality is premium. Mepsking wrapped them nicely so the capacitors wouldn't get crushed in transit.

Specification：90A single ESC

Additional reviews after 7 days
Mepsking's logistics are the best in the business. Very reliable tracking all the way to my door.
B***********V
Verified

Using these on a custom X-Class build. The raw power delivery is insane and completely reliable. No desyncs on giant 13-inch props even when I push the throttle hard.

Specification：90A single ESC
M**************9
Verified

These single ESCs are absolute beasts. Mounted them on the arms of my 10-inch macro quad. They are a bit bulky, but that's expected for a true 90A rating. Heat dissipation is excellent.

Specification：90A single ESC
T***************n
Verified

Perfect arm-mounted ESC for heavy setups. The factory soldering on the motor wires is flawless. Very easy to setup in BLHeli_32 and tweak the PWM frequency to smooth out big motors.

Specification：90A single ESC
K*****M
Verified

Installed on my 5” build, works straight out of the box. No overheating so far even after aggressive flights. Setup was easier than I thought honestly, happy with it.

Specification：90A single ESC
C************o
Verified

Running four of these 90A Specters on my 8-inch cinematic heavy lifter. The throttle resolution is butter smooth even when carrying a heavy RED Komodo camera. They handle high voltage effortlessly.

Specification：90A single ESC

Additional reviews after 8 days
Mepsking shipped these out super fast. Arrived in the US in just 5 days, perfectly packed.
C************S
Verified

A must-have if you are running the single ESC setup. It takes all the guesswork out of the power distribution and keeps the center stack super low-profile on my 7-inch frame.

Specification：Distribution board
X**********r
Verified

The distribution board layout is incredibly clean. The copper traces are thick enough to handle massive current spikes without melting. Soldering 10 AWG wire to the pads was a breeze.

Specification：Distribution board

FAQ Feel free to ask us any questions

Q: What signal protocols does the SPECTER 90A ESC support?: A: It supports DShot150 / DShot300 / DShot600, as well as Oneshot and Multishot protocols, ensuring broad compatibility with modern flight controllers.
Q: Does the ESC have built-in protection features?: A: Yes, it comes with temperature protection and safety mechanisms to prevent overheating and hardware damage, ensuring safe and reliable performance.
Q: Will switching from a 4-in-1 ESC to this single ESC change how my drone flies?: A: The flight feel won’t change much, but power delivery becomes more consistent under load, especially during long or aggressive flights.
Q: I’ve had ESC burnouts before—does this reduce the chance of that happening?: A: Yes. Higher current capacity and better heat handling make it more resistant to spikes and overload.
Q: Is this ESC only for extreme builds like X8 or heavy-lift drones?: A: That’s where it shines, but it can also be used on high-performance single-stack builds where reliability matters.