---
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: "$305.73"
currency: USD
in_stock: true
reviews_count: 11
category: "Stm"
url: https://www.desertcart.ec/products/191067318-stm-dux-shell-case-for-microsoft-surface-pro-12-1st
store_origin: EC
region: Ecuador
---

# Slim, lightweight, transparent design 180° flexible infinity hinge Military-grade 4ft drop protection 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:** $305.73
**Availability:** ✅ In Stock

## Summary

> 🖤 Rugged protection meets sleek transparency—carry confidence everywhere.

## 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?** $305.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/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

- • **Flex Your Workflow:** Adjust your Surface Pro effortlessly with the infinity hinge for perfect angles—work, sketch, or stream anywhere.
- • **Pen Always at Hand:** Integrated Surface Slim Pen storage keeps your creative tool secure and ready—never lose your edge.
- • **Seamless Compatibility:** Full access to all ports and keyboard integration means no compromises on productivity or convenience.
- • **Crystal Clear Confidence:** Show off your device’s original design with a transparent back that’s as tough as it is stylish.
- • **Rugged Defense, Sleek Profile:** Military-grade shock absorption meets ultra-slim style—protect your Surface Pro without the bulk.

## Overview

The STM Dux Shell Case for Microsoft Surface Pro 12" 1st Gen delivers military-grade drop protection certified to U.S. Dept. of Defense 810H standards, absorbing shocks from 4-foot falls. Its slim, lightweight, and transparent design preserves the device’s aesthetic while providing robust defense. Featuring a 180° infinity hinge, it offers versatile viewing angles for work or play. The case includes dedicated storage for the Surface Slim Pen and maintains full compatibility with the Surface Pro keyboard and ports, ensuring seamless daily use without removal.

## 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 |
| Additional Features | Heavy Duty Protection, Kickstand, Lightweight, Scratch Resistant, Shockproof |
| Age Range Description | Adult |
| Best Sellers Rank | #5,452 in Tablet Cases |
| Brand | STM |
| Built-In Media | 1 x Dux Shell Case |
| Color | Black |
| Compatible Device Size Maximum | 12 inches |
| 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 | 10.08 ounces |
| Manufacturer | STM Goods |
| Material | Polycarbonate , Thermoplastic Polyurethane |
| Mfr Part Number | STM-222-494LU-01 |
| Model Number | STM-222-494LU-01 |
| Pattern | Solid |
| Shell Type | Hard |
| UPC | 810046117118 |
| Unit Count | 1 Count |
| Warranty Description | Information Not Available |
| Water Resistance Level | Not Water Resistant |

## 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.ec/products/191067318-stm-dux-shell-case-for-microsoft-surface-pro-12-1st](https://www.desertcart.ec/products/191067318-stm-dux-shell-case-for-microsoft-surface-pro-12-1st)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-08-13*