FrSky Xact HV 5701 2.3Kg (31.6 oz in), 0.09 sec - 6.5g

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A high performance, high voltage servo for DLGs, F3K or whatever small model application you have in store, telemetry capable too!

FrSky presents the Xact 5701 servo, ready for any F3K, DLG or any other application where you need an ultra light, ultra compact, ultra thin yet high torque servo.

Inside the 6mm thick CNC machined Aluminum case is a set of all metal gears, spun by a coreless motor for quicker response and riding on ball bearings while a Hall Effect sensor keeps track of position. It is able to run on 6.0 to 8.4V, with exceptional torque and speed across the board, especially at higher voltages.

But that's not all, FrSky has incorporated telemetry sensors built right into the servo! They work with any FrSky F-Port 2.0 capable receiver and measure real time current draw and input voltage. You can also configure range of motion, direction and more via your radio's LUA script and perform firmware updates through your radio's SmartPort.

NOTE: FrSky may make slight changes to the name of this servo. Nonetheless, it will still be the same servo.


Servo Type Digital, High Voltage
Gear Type Metal
Motor Type Coreless
Stall Torque

1.6Kg-cm (22.2 oz-in) @6.0V
2.0Kg-cm (27.8oz-in) @7.4V
2.3Kg-cm (31.9 oz-in) @8.4V
Speed 0.13sec/60°@6.0V
Spline  4mm, 15T
Voltage Range 6.0-8.4V 
Dimensions 20.2x6x23mm
Weight 6.5g
FrSky Xact HV 5701 2.3Kg (31.6 oz in), 0.09 sec - 6.5g
FrSky Xact HV 5701 2.3Kg (31.6 oz in), 0.09 sec - 6.5g
FrSky Xact HV 5701 2.3Kg (31.6 oz in), 0.09 sec - 6.5g

Customer Reviews

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Brian B.
United States United States
I recommend this product

Great little servo

I put 3 of these in a Twisted Hobbies Yak 55. Powered them from the 2s flight battery. They are very smooth, and quiet with plenty of speed and power to flick the large control surfaces around. They are silent with no jittering or whining why the plane is sitting on the bench. They even come with a few adapters for the splined output shaft (a small plastic cap that is pressed onto the smaller metal splined output shaft) for use with other brand control arms. I'm very happy with their performance. My only complaint is with the very small screw used to secure the control arm. It is just long enough to reach the threads if using the provided control arm. I needed to use different arms that were slightly thicker. The provided screws were too short. I had to file down the end of the plastic spline adapter to get the screw to engage the shaft. A problem unique to my build but could cause a problem for others. Comes with 2, single armed control horns.