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A mid-tower PC case in Stardust Iron with a front mesh panel, tempered glass side panel and portable handles

Cooler Master

Cooler Master Q540-MGNN-S00 QUBE 540 PC case Stardust Iron

SKU CH-8SVW-143ZP MPN Q540-MGNN-S00

Mid-tower chassis supporting ITX to E-ATX boards with 415 mm GPU clearance, front mesh airflow, movable I/O panel and USB 3.2 Gen2 Type-C

  • Max graphics card length415 mm
  • Housing materialSteel / Tempered Glass
  • Supported motherboard sizesITX / M-ATX / ATX / *E-ATX(*Up to 280 mm)
  • Dust filteringBottom / Front / Top
  • 3.5-inch internal bays1
  • 2.5-inch internal bays2

Size ATX

Color Stardust Iron

  • Flexible horizontal or vertical orientation with reversible I/O panel and movable handles
  • Full front mesh panel plus pre-installed Sickle Flow 120mm fan for high airflow
  • Front USB 3.2 Gen1 and Gen2 Type-C ports for fast device access
  • Modular interior with repositionable parts and 3D-printable accessory support
  • GPU clearance up to 415mm and CPU cooler height up to 172mm

Modular ATX Case with Reversible I/O

The Cooler Master QUBE 540 is a mid-tower chassis built from steel and tempered glass in a Stardust Iron finish. It supports ITX, M-ATX, ATX and E-ATX boards up to 280 mm wide. A movable I/O panel and portable handles let you run the case horizontally or vertically while keeping ports accessible.

Builders Who Want Layout Freedom.

This case suits enthusiasts who value flexible orientation, 3D-printable customisation and a full-mesh front for airflow. It is less suited for users who need more than one 3.5-inch bay or more than two 2.5-inch bays, or who require a front panel that stays fixed in one position.

415 mm GPU Clearance Decides Fit for Large Cards

The single spec that determines whether this chassis works for your build is the maximum graphics card length of 415 mm. Measure your card; if it exceeds this figure you must choose a different case. The limit applies when no front fan is installed.

How it compares

Measured against everything we stock in Tower & Desktop PC Cases, at today’s prices. Recalculated every night.

Price $66.99
Cheaper than about 75% of the 1,468 comparable items (median $100.99).
Max graphics card length 415 mm
Higher than about 70% of the 894 comparable items (median 400 mm).

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Specifications

Product
Brand nameCooler Master
Model nameQ540-MGNN-S00
Product colorStardust Iron
Storage
3.5-inch internal bays1
2.5-inch internal bays2
Ports & slots
Expansion card slots7
Size & build
Max graphics card length415 mm
Housing materialSteel / Tempered Glass
Dust filteringBottom / Front / Top
Fan mounting optionsFront: 3 × 120 mm / 2 × 140 mm
Top: 140 / 280 / 360 mm (w/o I/O panel)
Rear: 140 / 280 / 360 mm (w/o I/O panel)
Bottom: 120 mm
Product dimensions438.5 × 225 × 492.1 mm
Product weight8.1kg
Shipping weight8.80 kg
Package size533 × 513 × 305 mm
Compatibility
Supported motherboard sizesITX / M-ATX / ATX / *E-ATX(*Up to 280 mm)
Radiator supportTop: 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 / 360 mm (w/o I/O panel)
CPU cooler height limit172 mm
PSU length limit200 mm

Other versions of this model

2 more in the same range

Questions about this item

Does the QUBE 540 include the 3.5-inch and 2.5-inch drive trays I need for my existing storage drives?

The chassis provides one internal 3.5-inch bay and two internal 2.5-inch bays, so your current drives will fit directly.

Will my ATX motherboard that is 11 inches wide fit in this case?

The QUBE 540 supports E-ATX boards up to 280 mm wide, covering standard 11-inch ATX and larger E-ATX models.

How can I confirm the pre-installed Sickle Flow 120 mm fan is running after I build the system?

Connect the fan to a motherboard header, power on, and verify RPM in BIOS or fan-control software; the front mesh panel should show clear airflow.

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