Multiplex MS-X4 - Mini Servo

Specifications

Source: Most data comes from the manufacturer but some data is sourced from our loyal community.

Last Updated:	2025-08-11
Modulation:	(add)
Torque:	4.8V: 40.30 oz-in (2.90 kg-cm)
Speed:	4.8V: 0.23 sec/60°
Weight:	0.85 oz (24.1 g)
Dimensions:	Length:1.18 in (30.0 mm) Width:0.63 in (16.0 mm) Height:1.22 in (31.0 mm)
Motor Type:	(add)
Gear Type:	(add)
Rotation/Support:	(add)
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued Multiplex MS-X4 is a high-performance analog sub-micro servo from the modular MS-X line, specifically tuned for a higher transit speed. While sharing the same convenient modular case as its counterparts, the MS-X4 features a motor and gear ratio optimized for velocity. This makes it an excellent choice for applications where a quick response is critical. It is a fantastic tail rotor servo for a 450-class helicopter, where its speed allows it to work effectively with the gyro to provide a stable, responsive tail. It is also a great choice for the ailerons on a fast-moving park jet or 3D model to achieve a high roll rate.
The defining characteristic of the MS-X4 is its agile, high-fidelity performance. It provides a noticeably quicker and more responsive feel to the controls, which can make any model feel more nimble and engaging to fly. It is a servo chosen by performance-oriented pilots who are looking to enhance the aerobatic capability of their models. Roboticists can effectively harness this speed for a variety of projects. The MS-X4 would be an excellent actuator for a small sorting mechanism that needs to move quickly to divert objects or for a fast-acting competitive robot mechanism.