Xpert RC GS-6401-HV

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Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	GS-6401-HV
Category	Hobby
Performance
Torque	8.4V 416.70 oz-in 7.4V 367.11 oz-in 6.0V 297.66 oz-in Above Average
Speed	8.4V 0.06 sec/60° 7.4V 0.07 sec/60° 6.0V 0.09 sec/60° Above Average
Physical
Weight	2.47 ozBelow Average
Dimensions	L 1.575 in W 0.787 in H 1.488 in
Case Material	Aluminum / Plastic
Drivetrain
Motor Type	Brushless
Gears	Metal
Control & Signal
Neutral Position	1520 µs
Refresh Rate	400 Hz
Control System	PWM
Electrical & Environment
Operating Voltage	6–8.4 V
Origin
Country of Origin	USA

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Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Above Average Stronger than 72% of 1294 Standard servos at 6.0V
Speed	Above Average Faster than 86% of 1290 Standard servos at 6.0V
Weight	Below Average Lighter than 26% of 2538 Standard servos

Performance Analysis

Shaft Power	6.40–12.43 W
Power Density	6.738 W/in³ More power-dense than 81% of 32 Xpert RC servos
Torque Density	4.2523 oz-in/g 3rd-highest torque density of 25 Xpert RC servos
Torque-to-Volume Ratio	161.39 oz-in/in³ 4th-highest torque-to-volume ratio of 27 Xpert RC servos
Speed-to-Weight	0.16611 (1/sec·g) Faster than 29% of 25 Xpert RC servos
Speed-Torque Trade-off	25.60 5th-highest speed-torque trade-off of 27 Xpert RC servos
Torque Gain per Volt	16.66%/V More voltage-responsive (torque) than 31% of 27 Xpert RC servos
Speed Gain per Volt	16.12%/V More voltage-responsive (speed) than 23% of 27 Xpert RC servos
Voltage Range Width	2.4 V Wider voltage range than 42% of 32 Xpert RC servos