---
product_id: 103733134
title: "Jonsbo U4 B Black/SGCC Steel/Aluminum/Tempered Glass ATX Mid Tower Computer Case"
brand: "jonsbo"
price: "A$1161"
currency: AUD
in_stock: true
reviews_count: 9
url: https://www.desertcart.com.au/products/103733134-jonsbo-u4-b-black-sgcc-steel-aluminum-tempered-glass-atx
store_origin: AU
region: Australia
---

# Dimensions: 205x340x428mm Supports ITX/M-ATX/ATX Material: SGCC Steel & Aluminum Jonsbo U4 B Black/SGCC Steel/Aluminum/Tempered Glass ATX Mid Tower Computer Case

**Brand:** jonsbo
**Price:** A$1161
**Availability:** ✅ In Stock

## Summary

> 💻 Build Your Dream Machine in Style!

## Quick Answers

- **What is this?** Jonsbo U4 B Black/SGCC Steel/Aluminum/Tempered Glass ATX Mid Tower Computer Case by jonsbo
- **How much does it cost?** A$1161 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/103733134-jonsbo-u4-b-black-sgcc-steel-aluminum-tempered-glass-atx)

## Best For

- jonsbo enthusiasts

## Why This Product

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

## Key Features

- • **Premium Materials:** Featuring a stylish U-type body made from 2.0mm aluminum for a modern aesthetic.
- • **Showcase Your Build:** Tempered glass panels allow you to flaunt your setup in style.
- • **Sleek & Sturdy Design:** Crafted with a robust 1.0mm SGCC steel frame for ultimate durability.
- • **Versatile Compatibility:** Accommodates a range of motherboard sizes (ITX/M-ATX/ATX) for your custom build.
- • **Efficient Cooling Potential:** Designed with airflow in mind, ensuring your components stay cool under pressure.

## Overview

The Jonsbo U4 B is a premium ATX mid-tower computer case, featuring a sleek design with a combination of SGCC steel and aluminum materials. It supports various motherboard sizes and offers ample cooling potential, all while showcasing your components through tempered glass panels.

## Description

The U4 B; launched at the end of 2016 sport's an outer shell made from aluminum magnesium alloy 2. 0 mm thick. Metallic, streamlined, and classy; the design style gives it a sense of industrial simplicity with purpose. By combining aluminum for the exterior and steel For the interior, It forms a perfect union of structural integrity and elegance. The U4 also displays a tempered glass panel for the left side plate. With edges cut by a CNC machine for precision accuracy with virtually no gap between the glass and metal frame. The U4's side glass panel is perfect for showcasing any hardware that has RGB lighting. Not only does it look good, It also serves to reduce more noise and vibrations than other typical traditional cases with metal side panels.

## Features

- Dimension: 205MM (W) x 340MM (D) x428MM (H)
- Material: internal structure: 1. 0mm SGCC steel plate
- U-type body: 2. 0mm aluminum
- Right plate/back plate/HDD rack: 1. 5mm aluminum
- Motherboard: ITX/M-ATX/ATX (within 305mm x 245mm)

## Images

![Jonsbo U4 B Black/SGCC Steel/Aluminum/Tempered Glass ATX Mid Tower Computer Case - Image 1](https://m.media-amazon.com/images/I/41ugFkLFZVL.jpg)
![Jonsbo U4 B Black/SGCC Steel/Aluminum/Tempered Glass ATX Mid Tower Computer Case - Image 2](https://m.media-amazon.com/images/I/41HnrwfNemL.jpg)
![Jonsbo U4 B Black/SGCC Steel/Aluminum/Tempered Glass ATX Mid Tower Computer Case - Image 3](https://m.media-amazon.com/images/I/31+0PlNrVAL.jpg)
![Jonsbo U4 B Black/SGCC Steel/Aluminum/Tempered Glass ATX Mid Tower Computer Case - Image 4](https://m.media-amazon.com/images/I/4141hkaG7UL.jpg)
![Jonsbo U4 B Black/SGCC Steel/Aluminum/Tempered Glass ATX Mid Tower Computer Case - Image 5](https://m.media-amazon.com/images/I/51NoOppHQyL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    yes.
  

*by N***Y on Reviewed in the United States 🇺🇸 on February 13, 2020*

yes, omg, yes.Here I was living in Hawaii. I had just moved there and realized I had to part out my desktop and throw away everything except the mobo, cpu, ram, and video card. Because there was no way to fly a whole desktop on a plane.You want to ship your desktop to Hawaii? Hahahhaa crasssshh bangggg chopppp breakkkkksMy only option to move to Ha-Vai-Yee was to break my desktop down to component parts, bubble wrap, and take with me on a carry on in a backpack. Months after I arrived, I finally recided to rebuild my gaming rig. Only, I was not about to be messed over by st00pid airlines ever again!Did my research and specifically chose this case because its LxWxH dimensions are SMALLER THAN AN AIRLINE CARRY ON. Even though it fits an ATX, nearly full size fan, and full size video card, and has room for a SSD+HDD.There aren't a lot of fan posts or build guides out ther but you can find one. This case totally ended up being the right choice for me. First of all, it's sexy. Black anodized aluminium, smoked tempered glass side. Then, it's smaller than an airline carry on. And yes - I did bring the fully built system back through airline TSA security. (I just removed and bubble wrapped the hard drives).Definitely a good case... really don't know why the 'scene' never really embraced it. Total mistake. Probably because... Chinese. But this was good.Update: It's 2020, 1.5 yrs later, still love my case choice. Fullsize ATX mobo in a smaller-than-airline-carry on size, which is smexy anodized black aluminium. Can you dig it?

### ⭐⭐⭐⭐ 







  
  
    Thermal issues but premium build and outlook.
  

*by J***R on Reviewed in the United States 🇺🇸 on July 22, 2020*

The case itself is quite good looking but it could have been smaller. I bought this case UMX4 for it's fairly compact form factor, it could've been few inches shorter in my opinion.Overall I have happy with my purchase, the build quality is good but lacks on cable management department if you compare with other manufacturers like NZXT. The thermals isn't great either. On default setup my CPU 8700k temperature was hitting 100 C with prime95 easily with cooler master hyper 212.I tried multiple coolers and finally settled with Scythe Fuma 2 @ 3 fan config, the temperature settled at 95 C with prime95 running for 20mins. I had to try various fan configuration to get this result but the best outcome came with all exhaust setup to create a negative pressure. This resulted in better temps for both cpu and gpu. I eventually decided to delid my 8700k and use liquid metal to bring my thermals to reasonable level.After the delid and all exhaust fan setup, I am able to reach cpu temp 80C on prime95. Gaming temp is decent after 2-3hrs of gameplay gpu reaching max of 62 C and cpu of 71 C.System Config.8700k @ 5ghz 1.28VRtx 2080ti @Stock16gb @ 3200mhz 16-18-18Asrock gaming k6 Z370

### ⭐⭐⭐⭐⭐ 







  
  
    BEAUTIFUL case!  Not "easy case" for novice.
  

*by M***A on Reviewed in the United States 🇺🇸 on December 15, 2020*

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     I bought this case for how it looks.  There are not many / any "real" instructions with it besides a few pages showing you the basics.  THE LID ON TOP HAS A PRESS DOWN LATCH, PRESS THE TOP TO RELEASE.  Don't force it open as this might break the latch (like I did).  It is not cheap materials, THICK glass, good cable management.  It keeps my motherboard and vid card COOL under load.  Heat goes blasting out the top.  Has options for water cooler unit too, but not included.  How the power supply mounts is "unique", never seen a setup like it but it works.  Only regret is the way the PSU mounts, you have to unlatch the top to access the power switch (physical on/off button).  If you are looking for a stylish case, this one is great and has excellent airflow.  Comes with 4 fans.

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**Shop now:** [https://www.desertcart.com.au/products/103733134-jonsbo-u4-b-black-sgcc-steel-aluminum-tempered-glass-atx](https://www.desertcart.com.au/products/103733134-jonsbo-u4-b-black-sgcc-steel-aluminum-tempered-glass-atx)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-24*