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Black ATX mid-tower case with tempered glass side panel

Cooler Master

Cooler Master CMP 520 CP520-KGNN-S00 Black ATX Mid Tower PC Case

SKU CH-N0RD-6QS34

Black ATX mid-tower case supports up to six 120 mm and four 140 mm fans, 240 mm or 280 mm radiators, two 3.5″ drives, and tempered glass

  • TypeATX Mid
  • Mid-tower steel frame fits ATX, micro-ATX and Mini-ITX boards
  • Six 120 mm and four 140 mm fan mounts for high airflow
  • Front panel includes USB and audio ports for easy access
  • Two 3.5-inch drive bays provide internal storage room
  • Tempered glass side panel shows the build inside

Build-ready mid-tower

The Cooler Master CMP 520 is a black ATX mid-tower chassis built from steel with a tempered-glass panel. It accepts ATX, microATX and Mini-ITX motherboards, giving system integrators and DIY builders a versatile platform for mainstream gaming or workstation assemblies.

Cooling and drive layout

Six 120 mm and four 140 mm fan mounts provide flexible airflow planning, while 240 mm and 280 mm radiator support covers most closed-loop liquid coolers. Two 3.5-inch drive bays handle bulk storage, and the front panel supplies USB and audio connections without occupying a 5.25-inch bay.

Sustained thermal behaviour

The open fan-grid design and multiple large-diameter mount points let installed coolers move high volumes of air at lower RPM, keeping component temperatures stable during extended render or compute sessions. No 360 mm or larger radiator fits, so builders planning extreme overclocks should verify cooler clearance before purchase.

Highlights

  • Mid-tower steel frame fits ATX, micro-ATX and Mini-ITX boards
  • Six 120 mm and four 140 mm fan mounts for high airflow
  • Front panel includes USB and audio ports for easy access
  • Two 3.5-inch drive bays provide internal storage room
  • Tempered glass side panel shows the build inside

Specifications

BrandCooler Master
Part NumberCMP 520
TypeATX Mid

Questions about this item

How many 120 mm fans can the CMP 520 accommodate?

The case supports up to six 120 mm fans across its mounting points.

What is the maximum radiator length supported at the front or top?

Radiators up to 280 mm are supported, while 360 mm and larger do not fit.

Which motherboard form factors are compatible with this mid-tower case?

ATX, micro-ATX and Mini-ITX boards are supported; Mini-DTX is not.

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