---
product_id: 521702433
title: "RDS3218 20KG Dual Shaft U Mount RC Digital Servo - Waterproof Robot Arm Servo - High Torque Full Metal Gear Servo with U Mounting Bracket for DIY Baja Car 1/8 1/10 Scale Crawler (270 Degree"
brand: "rcmall"
price: "€ 99.35"
currency: EUR
in_stock: true
reviews_count: 3
category: "R Cmall"
url: https://www.desertcart.hr/products/521702433-rds3218-20kg-dual-shaft-u-mount-rc-digital-servo-waterproof
store_origin: HR
region: Croatia
---

# Waterproof for all-weather use 270° dual shaft rotation 20KG high torque power RDS3218 20KG Dual Shaft U Mount RC Digital Servo - Waterproof Robot Arm Servo - High Torque Full Metal Gear Servo with U Mounting Bracket for DIY Baja Car 1/8 1/10 Scale Crawler (270 Degree

**Brand:** rcmall
**Price:** € 99.35
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your RC game with torque and precision that commands attention!

## Quick Answers

- **What is this?** RDS3218 20KG Dual Shaft U Mount RC Digital Servo - Waterproof Robot Arm Servo - High Torque Full Metal Gear Servo with U Mounting Bracket for DIY Baja Car 1/8 1/10 Scale Crawler (270 Degree by rcmall
- **How much does it cost?** € 99.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/521702433-rds3218-20kg-dual-shaft-u-mount-rc-digital-servo-waterproof)

## Best For

- rcmall enthusiasts

## Why This Product

- Trusted rcmall brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Control:** Advanced linearity and low noise for smooth, accurate movements every time.
- • **All-Weather Durability:** Waterproof design ensures reliable operation rain or shine—never miss a beat.
- • **Unmatched Torque Power:** 20KG metal gear servo delivers powerhouse performance for your toughest RC builds.
- • **Multi-Scale Compatibility:** Perfectly engineered for 1/8, 1/10, and 1/12 scale crawlers, robots, and mechanical arms.
- • **Versatile U-Mount Brackets:** Dual U-shaped brackets offer flexible mounting options to fuel your creativity.

## Overview

The RDS3218 is a 20KG high torque, dual shaft digital servo featuring full metal gears and a 270° rotation range. Waterproof and engineered with precision potentiometers, it offers stable, low-noise operation ideal for 1/8 to 1/12 scale RC crawlers, robots, and mechanical arms. Included U-mount brackets provide versatile installation options, making it a must-have upgrade for serious DIY RC enthusiasts.

## Description

RDS3218 20KG Dual Shaft U Mount RC Digital Servo - Waterproof Robot Arm Servo - High Torque Full Metal Gear Servo with U Mounting Bracket for DIY Baja Car 1/8 1/10 Scale Crawler ( 270 Degree ）

Review: This is my RC retriever boat, which comes in very handy
Review: Torque to spare! Robust, and easy to control.

## Features

- RDS3218 20KG dual shaft full metal gear RC digital servo 270 Degree.
- Comes with U shape brackets. It can be connected in many ways. Free to use your imagination .
- Advanced linearity and accuracy with precision potentiometers,stable,low noise,waterproof.
- Perfect for 1/8, 1/10, 1/12 scale crawler truck, robot,boat,mechanical arms, climbing cars and remote control models.
- Package List : 1 x RDS3218 Digital Servo ; 1 X Long U Shape Bracket ; 1 X Short U Shape Bracket ; 1 X Screws Set

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 6.1 x 2.03 x 4.06 cm; 95 g |
| Manufacturer recommended age | 3 years and up |
| Item model number | RDS3218MG |
| Assembly Required | Yes |
| Batteries Required? | No |
| Material Type(s) | Metal |
| ASIN | B0BP25DH7Z |

## Images

![RDS3218 20KG Dual Shaft U Mount RC Digital Servo - Waterproof Robot Arm Servo - High Torque Full Metal Gear Servo with U Mounting Bracket for DIY Baja Car 1/8 1/10 Scale Crawler (270 Degree - Image 1](https://m.media-amazon.com/images/I/511Chj4qI3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This is my RC retriever boat, which comes in very handy
*by M***N on 1 April 2025*



### ⭐⭐⭐⭐⭐ Torque to spare! Robust, and easy to control.
*by J***T on 14 July 2024*



### ⭐⭐⭐ it is not a 270 Degree servo in the purest meaning.
*by R***Z on 5 November 2024*



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**Shop now:** [https://www.desertcart.hr/products/521702433-rds3218-20kg-dual-shaft-u-mount-rc-digital-servo-waterproof](https://www.desertcart.hr/products/521702433-rds3218-20kg-dual-shaft-u-mount-rc-digital-servo-waterproof)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-23*