4 in 1 ESC 45A Electronic Speed Controller with Double Hole Spacing for FPV RC Drone Review (2026)

Who this ESC is aimed at

This board suits builders assembling a freestyle or general purpose FPV quad who want a single integrated 4in1 ESC instead of soldering four separate speed controllers. The double hole spacing pattern is meant to work across more than one stack size, which is convenient if you are reusing an older frame or unsure exactly which flight controller mounting layout you will pair it with. It is a good fit for racing class builds specifically, since the listing describes a compact footprint similar to dedicated racing ESCs, and for pilots comfortable soldering their own stacks rather than buying a preassembled flight controller and ESC combo.

What the current rating and firmware mean

Rated at 45A, this ESC covers the current draw of typical freestyle and racing motors without much margin to spare on the largest setups, so it fits mid size builds better than heavily overpowered ones. It runs BLHeli-S firmware, which can be configured or reflashed through a throttle signal cable, a dedicated programming board, or directly inside Cleanflight or Betaflight, matching the workflow most FPV pilots already know. The board also includes damped light technology and regenerative braking, features that make the motors stop more precisely and predictably when you cut throttle, which helps with sharp deceleration during technical flying rather than motors free spinning down slowly.

Building it into a stack

Because this is a bare ESC board rather than a full stack, you will need to solder it to a compatible flight controller and to all four motors, so a temperature controlled iron and some patience with the double hole spacing pads make the job easier. The listing does not spell out a voltage range or exact firmware version in its title, so it is worth confirming your target cell count and reading the full listing details before ordering if you are pushing toward the higher end of what a 45A board can handle. Owners building racing quads should note that the low noise PWM drive and smooth throttle response are aimed more at controlled racing lines than maximum punch.

How it compares with named rivals

Against the AERO SELFIE 45A 4in1 ESC in the same 30x30 class, the two are similar on paper, with AERO SELFIE stating its 6 to 28V range and 12.5g weight more clearly in its own listing, which makes it slightly easier to judge fit before buying. The iFlight SucceX-E 45A V2 remains the stronger overall pick in this category, backed by a longer standing FPV brand and BLHeli_S support that has been refined over several product generations. This board's damped light and regenerative braking features are a genuine point of difference, so it is worth choosing over the plainer AERO SELFIE or Alomejor boards if precise motor braking during technical flying matters to your flying style.

Verdict for stack builders

This is a workable, mid pack 45A ESC for freestyle or racing builds where damped light and regenerative braking add real value, and its double hole spacing gives it more mounting flexibility than some single pattern boards. Buyers should confirm voltage range and cell count compatibility from the full listing before committing, since the title alone leaves some gaps. Pilots who want the strongest documented brand backing should still lean toward the iFlight SucceX-E, while those comfortable with a more generic budget board will find this one delivers the core ESC features a freestyle or racing build needs.

Frequently asked questions