Cooler Master

Cooler Master Q540MGNNS00 Qube 540 High Airflow ATX Mid Tower Case

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SKU:
21366348
MPN:
q540-mgnn-s00
Availability:
Usually ships the same or next business day. In stock at our GA warehouse.
Shipping:
Calculated at Checkout
Stock Update:
05/18/2026 10:22:57 AM PST
$84.83
Stock Update:
05/18/2026 10:22:57 AM PST
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Description



This item is brand-new, factory sealed.

The Qube 540 redefines DIY PC building with its beginner-friendly flat-pack design and fully customizable interior. This compact ATX case removes the limits of traditional layouts giving you the freedom to create your ideal internal setup. It also supports 3D-printed external accessories allowing you to personalize both the look and functionality of your build. Flexible Orientation Design Engineered to work seamlessly in both horizontal and vertical positions with a reversible I/O panel and movable handles that let you customize layout improve accessibility and reposition the case effortlessly. GPU Compatibility Offers up to 415 mm GPU clearance w/o the front fan for full-size graphic cards including RTX 5090 and RX 9070 XT. Motherboard Compatibility Supports ITX ATX and large E-ATX motherboards (up to 11" wide) all within a compact ATX form factor for maximum build flexibility. Mesh-Optimized Airflow Full front mesh panel maximizes ventilation for superior cooling under load paired with a pre-installed SickleFlow 120mm fan for improved airflow. USB Type-C & Full I/O Connectivity The I/O panel includes 2 USB 3.2 Gen1 ports and a USB 3.2 Gen2 Type-C port giving you fast and convenient front-access connectivity. Modular & Fully Customizable Design Repositionable parts and flexible mounts let you create your ideal internal layout while support for 3D-printed accessories allows you to personalize the exterior for a truly unique build.

Specs

Physical Characteristics
Product Material
Form FactorMid-tower
Cooler TypeFan/Liquid Cooler
Product ColorStardust Iron
Height16.7"
Color FamilyOther
Maximum GPU Length16.34"
Maximum PSU Length7.87"
Width8.9"
Depth16.7"
Maximum CPU Cooler Height6.77"
Warranty
Limited Warranty2 Year
I/O Expansions
Total Number of Expansion Slots7
Interfaces/Ports
Headphone/Microphone Combo PortYes
Total Number of Audio Out Ports1
USB Port Details
Front Audio InYes
Front Audio OutYes
Front USBYes
Total Number of USB Ports3
Total Number of Audio In Ports1
Bays
Number of Internal 2.5" Bays2
Number of Total Expansion Bays3
Number of Internal 3.5" Bays1
General Information
Brand NameCooler Master
Manufacturer Website Addresshttp://www.coolermaster-usa.com
Marketing InformationCompact Yet Capable
Small size, big performance. The QUBE 540 supports GPUs up to 415 mm, 360 mm liquid coolers, and high-end components.
Flexible Orientation Design
Vertical or horizontal, the QUBE 540 adapts to your space and style. It fits cleanly wherever you place it.
Create Your Own Layout
A modular interior designed for endless creativity, for liquid-cooling setups to compact workstations. Customize it your way.
Repositionable I/O Panel and Movable Handles
Mount the I/O panel and handles on the top, bottom, left, or right to keep ports and grips where you need them.
Versatile Modular Layout
Oce case, countless possibilities. Redefine your build anytime with swappable components and flexible layouts.
Vertical GPU Ready
Supports vertical GPU installation to highlight premium graphics and aesthetics.
ACCESSORY ECOSYSTEM
The Qube 540 comes with a living accessory ecosystem as we have prepared 3D-printable files for you to create your own accessories.
More from the Manufacturer
Product TypeGaming Computer Case
Product NameQUBE Q540-MGNN-S00 Gaming Computer Case
ManufacturerCooler Master Co., Ltd
Manufacturer Part NumberQ540MGNNS00
Product ModelQ540-MGNN-S00
Product LineQUBE
Technical Information
Motherboard Supported
Installed Fan Size4.72"
Installed Fan Size Details1 x 120mm
Fan Supported Details<ul><li>Fan Support - Front 3 x 120 mm (w/o I/O panel) / 2 x 140 mm</li><li>Fan Support - Top 3 x 120 mm (w/o I/O panel) / 2 x 140 mm</li><li>Fan Support - Rear 1x 120mm</li><li>Fan Support - Bottom 3 x 120 mm / 2 x 140 mm</li></ul>
Window Panel Location
Number of Fans Supported10
Features
Window PanelYes
Fan Size Supported
Number of Fans Installed1

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Warranty Information

All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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Cooler Master Q540MGNNS00 Qube 540 High Airflow ATX Mid Tower Case
$84.83