---
product_id: 191067318
title: "STM Dux Shell Case for Microsoft Surface Pro 12\" 1st Gen – Rugged Transparent Cover with Military-Grade Drop Protection, Slim Fit, Pen Storage, Keyboard Compatible, Easy Install – Black"
brand: "stm"
price: "MX$4275"
currency: MXN
in_stock: true
reviews_count: 12
category: "Stm"
url: https://www.desertcart.mx/products/191067318-stm-dux-shell-case-for-microsoft-surface-pro-12-1st
store_origin: MX
region: Mexico
---

# Transparent design showcase 180° Infinity Hinge flexibility Mil-Spec drop-tested durability STM Dux Shell Case for Microsoft Surface Pro 12" 1st Gen – Rugged Transparent Cover with Military-Grade Drop Protection, Slim Fit, Pen Storage, Keyboard Compatible, Easy Install – Black

**Brand:** stm
**Price:** MX$4275
**Availability:** ✅ In Stock

## Summary

> 🖤 Rugged meets refined—protect your Surface Pro X in style!

## Quick Answers

- **What is this?** STM Dux Shell Case for Microsoft Surface Pro 12" 1st Gen – Rugged Transparent Cover with Military-Grade Drop Protection, Slim Fit, Pen Storage, Keyboard Compatible, Easy Install – Black by stm
- **How much does it cost?** MX$4275 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/191067318-stm-dux-shell-case-for-microsoft-surface-pro-12-1st)

## Best For

- stm enthusiasts

## Why This Product

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

## Key Features

- • **Sleek Transparent Shell:** Show off your Surface Pro X’s iconic design or personalize with photos and ID tags.
- • **Military-Grade Protection:** Survives 26 drops from 4 feet—your Surface’s ultimate bodyguard.
- • **Stable Multi-Angle Viewing:** Rock-solid support for both portrait and landscape setups—work or binge, uninterrupted.
- • **Versatile 180° Infinity Hinge:** Seamlessly switch between typing, drawing, and viewing modes with fluid ease.
- • **Precision Fit for Surface Pro X:** Tailored compatibility for 2019, 2020, and 2021 models ensures perfect access to all ports.

## Overview

The STM Dux Shell is a lightweight yet ultra-durable protective case designed specifically for Microsoft Surface Pro X (2019-2021). Mil-Spec tested for drop resistance, it features a unique transparent back to showcase your device’s design, a 180-degree infinity hinge for versatile use, and stable viewing angles for maximum productivity and comfort.

## Description

Protect your Microsoft Surface Pro 12" 1st Edition with the STM Dux Shell, a slim yet rugged case that delivers military-grade drop protection and smart features for work, travel, or daily use. With a clear back panel that highlights your device, this lightweight cover withstands 4-foot drops per U.S. Dept. of Defense standards. The infinity hinge allows for a full 180° range of motion, offering flexible viewing and typing angles. Designed with a dedicated slot for your Surface Slim Pen and full compatibility with the Surface Keyboard, this case ensures your productivity never skips a beat. The easy-install design and ventilated construction keep your Surface Pro protected, cool, and ready for anything. Perfect for students, professionals, and creators alike.

Review: Great she’ll! - One of the only shells I could find for this surface, it’s the BEST one. Durable, and quality. No issues at all.
Review: good cover access to all ports tough and rugged for sure adds some weight and size - tough case a little bulky but tough. allows the factory keyboard to cover and connect to all ports.

## Features

- Military-Grade Drop Protection: Engineered to exceed U.S. Dept. of Defense 810H standards, this STM Dux Shell case for Surface Pro 1st Gen absorbs shock from 4-foot drops, offering rugged durability without bulk.
- Slim, Lightweight, Transparent Design: Showcase your Surface Pro's original beauty with a clear back panel while enjoying robust protection. The slim profile maintains portability and sleek aesthetics.
- Flexible Viewing with Infinity Hinge: Easily adjust your Surface Pro to multiple angles—landscape, portrait, or flat—ideal for typing, sketching, streaming, or presenting on the go or at your desk.
- Smart Surface Slim Pen Storage: Integrated cutout lets you store and access your Surface Slim Pen securely, ensuring it stays with your device and is always ready for use (pen not included).
- Keyboard & Port Compatibility: Designed for seamless integration with the Surface Pro 12" Keyboard and unobstructed access to all ports, buttons, and vents—no need to remove the case for daily use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FDQX4W9S |
| Adjustable Length | No |
| Age Range Description | Adult |
| Antenna Location | Desk |
| Best Sellers Rank | #5,550 in Tablet Cases |
| Brand | STM |
| Built-In Media | Information Not Available |
| Color | Black |
| Compatible Devices | Surface Pro 1st Edition, Surface Pro 1st Edition 12", Tablets |
| Compatible Phone Models | 1st Edition 12", Tablets |
| Customer Reviews | 4.6 out of 5 stars 52 Reviews |
| Enclosure Material | Polycarbonate, Thermoplastic Polyurethane |
| Form Factor | Case |
| Item Dimensions | 11.18 x 7.83 x 0.98 inches |
| Item Weight | 0.63 Pounds |
| Manufacturer | STM Goods |
| Mfr Part Number | STM-222-494LU-01 |
| Model Number | STM-222-494LU-01 |
| Mounting Type | Tabletop |
| Number of Items | 1 |
| Other Special Features of the Product | Heavy Duty Protection, Kickstand, Lightweight, Scratch Resistant, Shockproof |
| Style Name | 1st Edition |
| UPC | 810046117118 |
| Unit Count | 1.0 Count |
| Warranty Description | Information Not Available |

## Product Details

- **Brand:** STM
- **Color:** Black transparent
- **Compatible Devices:** Microsoft Surface Pro X
- **Form Factor:** Case
- **Shell Type:** Hard

## Images

![STM Dux Shell Case for Microsoft Surface Pro 12" 1st Gen – Rugged Transparent Cover with Military-Grade Drop Protection, Slim Fit, Pen Storage, Keyboard Compatible, Easy Install – Black - Image 1](https://m.media-amazon.com/images/I/61vyk37MZiL.jpg)
![STM Dux Shell Case for Microsoft Surface Pro 12" 1st Gen – Rugged Transparent Cover with Military-Grade Drop Protection, Slim Fit, Pen Storage, Keyboard Compatible, Easy Install – Black - Image 2](https://m.media-amazon.com/images/I/615SOemo8sL.jpg)
![STM Dux Shell Case for Microsoft Surface Pro 12" 1st Gen – Rugged Transparent Cover with Military-Grade Drop Protection, Slim Fit, Pen Storage, Keyboard Compatible, Easy Install – Black - Image 3](https://m.media-amazon.com/images/I/71ZrzUSRfiL.jpg)
![STM Dux Shell Case for Microsoft Surface Pro 12" 1st Gen – Rugged Transparent Cover with Military-Grade Drop Protection, Slim Fit, Pen Storage, Keyboard Compatible, Easy Install – Black - Image 4](https://m.media-amazon.com/images/I/71gX-O9ny9L.jpg)
![STM Dux Shell Case for Microsoft Surface Pro 12" 1st Gen – Rugged Transparent Cover with Military-Grade Drop Protection, Slim Fit, Pen Storage, Keyboard Compatible, Easy Install – Black - Image 5](https://m.media-amazon.com/images/I/71yFS+K0SoL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great she’ll!
*by C***N on February 26, 2026*

One of the only shells I could find for this surface, it’s the BEST one. Durable, and quality. No issues at all.

### ⭐⭐⭐⭐⭐ good cover access to all ports tough and rugged for sure adds some weight and size
*by M***. on December 15, 2025*

tough case a little bulky but tough. allows the factory keyboard to cover and connect to all ports.

### ⭐⭐⭐⭐⭐ Very durable
*by H***R on January 21, 2025*

Very durable! Easy to install, however it makes plugging accessories in a bit difficult. It also makes it SUPER freaking heavy. But I’d rather it be protected! I’ve already dropped it several times and it has held up perfectly.

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**Shop now:** [https://www.desertcart.mx/products/191067318-stm-dux-shell-case-for-microsoft-surface-pro-12-1st](https://www.desertcart.mx/products/191067318-stm-dux-shell-case-for-microsoft-surface-pro-12-1st)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-05-24*