Multiplex Polo Digi 4 - Performance 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: 39.00 oz-in (2.81 kg-cm) 6.0V: 49.00 oz-in (3.53 kg-cm)
Speed:	4.8V: 0.10 sec/60° 6.0V: 0.08 sec/60°
Weight:	0.77 oz (21.8 g)
Dimensions:	Length:1.20 in (30.5 mm) Width:1.10 in (27.9 mm) Height:0.50 in (12.7 mm)
Motor Type:	3-pole
Gear Type:	Metal
Rotation/Support:	Dual Bearings
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued Multiplex Polo Digi 4 is a powerful, high-torque digital mini servo, known for its exceptional strength and durability. This servo is a true powerhouse in a compact package, making it an excellent choice for a wide range of demanding applications. It is a premier choice for the flight controls on a large, heavy park flyer or a .25 size 3D model where a standard micro servo's gears might be at risk. It is also an outstandingly tough steering servo for 1/16 scale monster trucks and rock crawlers. The Polo Digi 4 is known for its durable, often all-metal, gear train and a potent motor that delivers relentless torque, all controlled by a precise digital interface.
The identity of the Polo Digi 4 is its concentrated toughness and digital power. It solves the common problem of needing more strength and durability than a micro servo can provide, but not having the space for a standard-sized actuator. It gives users the confidence to operate their models in demanding conditions without fear of servo failure. In robotics, the Polo Digi 4 is an excellent problem-solver. It enables the creation of strong, compact mechanisms that would be impossible with larger servos.