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  6. Item#: N82E16811119472

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Cooler Master QUBE 540 High-Airflow ATX Mid-Tower Case, 415mm GPU Clearance Max, Designed Ready RTX 5090|RX 9070 XT, Tempered Glass, Modular & Customizable Design, Reversible I/O Panel - Moonstone

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  • 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 Sickle Flow 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.
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Specs
Reviews

Learn more about the Cooler Master Q540-MGNN-S00

Model
Brand Cooler Master
Model Q540-MGNN-S00
Details
Color Moonston
Case Material Steel / Tempered Glass
Motherboard Compatibility ITX / M-ATX / ATX / *E-ATX(*Up to 280 mm)
Dust Filters Bottom / Front / Top
Expansion
Internal 3.5" Drive Bays 1
Internal 2.5" Drive Bays 2
Expansion Slots 7
Cooling System
Fan Options Front: 3 x 120mm / 2 x 140mm / 2 x 200mm
Top: 140 / 280 / 360 mm (w/o I/O panel)
Rear: 140 / 280 / 360 mm (w/o I/O panel)
Bottom: 120 mm
Radiator Options Top: 140 / 280 / 360 mm (w/o I/O panel)
Front: 140 / 280 / 360 mm (w/o I/O panel)
Rear: 120 mm
Bottom: 140 / 280 / 360mm (w/o I/O panel)
Dimensions & Weight
Max GPU Length 415 mm
Max CPU Cooler Height 172 mm
Max PSU Length 200 mm
Dimensions 438.5 x 225 x 492.1 mm
Weight 8.10kg
Additional Information
First Listed on Newegg November 25, 2025

Warranty & Returns

Warranty, Returns, And Additional Information

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  • Return for refund within: 30 days
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  • This item is covered by Newegg.com's International Order Return Policy.
  • Read full return policy for details.
  • *Subject to applicable law

  • Warranty Notice:

    This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.

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