Those were the good old days! This product is no longer on sale

Pictures may differ from actual products

Cooler Master MasterBox Q500L

Mid tower Black modular case - clear side panel

Last price 69€95
Holy Moly!
Overview

Choose your style...

The MasterBox Q500L from Cooler Master is a standard mid-tower case that can be placed vertically or horizontally. Its transparent wall gives you a permanent view of your entire configuration, whether from an ATX, micro-ATX or mini-ITX motherboard.

Compact, but spacious enough

Very compact in appearance, the MasterBox Q500L from Cooler Master hides its game well. It can accommodate ATX, micro-ATX or mini-ITX format motherboards to create a configuration that's powerful enough for gaming. The case will accommodate a 360 mm graphics card, and the processor will be cooled by a cooling fan with a maximum height of 160 mm. There are also 7 PCI slots for expansion cards for your future PC. On the storage side, you'll be able to install one 3.5" and two 2.5" disks. The Q500L can be placed vertically or horizontally, depending on the space available and your preferences.

High-performance cooling

The Cooler MasterBox Q500L has a fully perforated chassis, so it can easily support various fan configurations. Designed for efficient cooling, it supports up to 6 fans (including a 120 mm fan pre-installed at the rear) and is compatible with 120 and 240 mm watercooling systems. It also features magnetic dust filters with a unique design for quick and easy cleaning. So you can create an effective ventilation system to keep your components cool.

  • Rear: 1 x 120 mm installed or 120 mm watercooling
  • Top: 2 x 120/140 mm or watercooling 120/240 mm
  • Bottom: 2 x 120 mm

Key features:

  • Medium tower case
  • With acrylic window
  • ATX / Micro-ATX / Mini-ATX motherboard compatible
  • 2 x 3.5" hard disks (compatible with 2.5" hard disks/SSDs) and 4 x 2.5" hard disks/SSDs (2 x 2.5" and 2 x 2.5" / 3.5 ").
  • 7 expansion slots
  • Efficient cooling system with the option of installing 5 fans (1 x 120 mm rear fan supplied)
  • Watercooling compatible
  • 1 x USB 3.0, 2 x USB 2.0 and front-mounted headset/microphone
  • Possibility of installing a graphics card up to 360 mm long
Specifications
Select your criteria

General information

Product name

Cooler Master MasterBox Q500L

Brand

Cooler Master

Model

MCB-Q500L-KANN-S00

Main characteristics

Graphic card max. length

360 mm

Max height CPU fan

160 mm

Power supply max. length

180 mm

Power format

ATX/EPS

Case format

Mid tower

Use

Office
Gamer

Material

Steel
ABS (Plastic)

Motherboard format

ATX
Micro ATX
Mini ITX

Power supply supplied

No

Design

Screwless fixing system

No

Case color

Black

Front color

Black

Dust filters

1

Integrated display

No

Glass

Yes

Fish tank (panoramic view)

No

LED RGB

No

Water cooling compatible

Yes

Motherboard connector location

Standard connectors (on the motherboard)

Expansion slots

Number of PCI slots

7

Low profile

No

Number of 2.5"/3.5" slots

2

Front connectivity

Location of expansion ports

Side

Connector(s) available

Headphone (3.5mm Jack Female)
Microphone (3.5mm Jack Female)
2 X USB 3.0

Cooling

Fan(s) included

Yes

Number of rear fan(s) slots

1 X 120mm

Quantity of rear fan(s) supplied

1

Quantity of front fan(s) supplied

0

Number of above fan(s) slots

2 X 120 or 140mm

Number of underneath fan(s) slots

2 X 120mm

Water cooling

AIO radiator compatibility

240mm radiator
120mm radiator

Above AIO slot(s)

120mm radiator
240mm radiator

Rear AIO slot(s)

120mm radiator

Physical characteristics

Width

230 mm

Height

381 mm

Depth

386 mm

Weight

3.7 kg

Volume

33.82 l

Warranties

Commercial warranty

Legal warranty

Product referenced on 4 Jun 2019

Customer reviews
Global rating
9/10
based on 64 reviews Editorial and moderation guide
  • 52%
    33 reviews
  • 36%
    23 reviews
  • 9%
    6 reviews
  • 3%
    2 reviews
  • 0%
  • by FredV
    Posted on 8 Nov 2025
    Bought on 3 Nov 2025 from LDLC
    Number of reviews: 2 Average rating: 9

    Good box

    Enough space to fit a 3070. The magnetic filters are practical, quick and easy to replace. A bit strange to place the power supply in front, but it doesn't get in the way.

    Model: Cooler Master MasterBox Q500L
    Review automatically translated
  • by Arthur
    Posted on 29 Oct 2025
    Bought on 30 Sep 2025 from LDLC
    Number of reviews: 1 Average rating: 6

    Cheap but compact!

    Very compact casing
    Power supply support a little tricky to fit
    USB connector panel, audio and power button too soft / cheap

    Overall satisfied, I was mainly looking for compactness

    Model: Cooler Master MasterBox Q500L
    Review automatically translated
  • by XavierB
    Posted on 12 Aug 2025
    Bought on 8 Aug 2025 from LDLC
    Number of reviews: 1 Average rating: 8

    Good box, but a little disappointed

    A very good case with a sober design and good air management. However, please note that the glass is not glass but plexiglass.

    Model: Cooler Master MasterBox Q300L
    Review automatically translated
  • by David G
    Posted on 4 Jan 2025
    Bought on 29 Dec 2024 from LDLC
    Number of reviews: 4 Average rating: 8

    Correct for an entry-level box

    Entry-level case with a rather nice look thanks to the two magnetic covers that attach to the chassis and the acrylic glass (watch out for scratches).
    The power supply has to be fixed to a cradle before being fixed to the chassis, so you have to decide whether you want the PSU's air to be extracted upwards or downwards first.
    Staying on the subject of prerequisites, you need to think carefully about the rear covers that need to be removed if a PCIE component is to be added, otherwise you'll have to remove the motherboard to remove them.
    Note that the panel containing the start button can be placed in different positions.

    Model: Cooler Master MasterBox Q300L
    Review automatically translated
  • by JonathanL
    Posted on 17 Dec 2024
    Bought on 17 Nov 2024 from LDLC
    Number of reviews: 9 Average rating: 9

    Front USB and jack sockets

    The tower does its job, especially for the price.

    The USB and jack sockets seem a bit hard, perhaps because they're new.
    But then I get the impression that the 'front' 'bends' a bit under pressure.

    Apart from that. I'm happy with my purchase.

    Model: Cooler Master MasterBox Q500L
    Review automatically translated
  • by Cris
    Posted on 15 Oct 2024
    Bought on 30 Nov 2023 from LDLC
    Number of reviews: 12 Average rating: 8

    Good value for money

    What more could you ask for, it does the job for the price, the power button looks a bit cheap but otherwise nothing to write home about.
    little plus: the glass

    Model: Cooler Master MasterBox Q300L
    Review automatically translated
  • by VALENTINC
    Posted on 15 Oct 2024
    Bought on 16 Sep 2024 from LDLC
    Number of reviews: 2 Average rating: 7

    OK

    clean shipping
    small and compact case
    too bad no front fan
    rather quiet rear fan
    very customisable with those little holes everywhere.

    Model: Cooler Master MasterBox Q300L
    Review automatically translated
  • by Dimples
    Posted on 5 Oct 2024
    Bought on 3 Oct 2024 from LDLC
    Number of reviews: 9 Average rating: 8

    Good box, a bit complicated to assemble

    Quite an original tower. compact, but can hold a full ATX without a problem. beware of the length of the graphics card, which could touch the power supply on the front panel (the power supply is not fitted at the back, but at the very front).
    the screws are of average quality, so make sure you have some spare ones; there are boxes of PC case screws available for a few euros.
    the magnetic filters are great though (for the top and front). currently contains a 5600x and a 4060.
    the fan holes on the edges (top, bottom and front) are smaller than those right in the middle of the "grille"; you'll need to leave a bit of margin to screw in the fans (you need to be in the middle of the grille more than on the sides).

    Model: Cooler Master MasterBox Q500L
    Review automatically translated
  • by EflammL
    Posted on 4 Oct 2024
    Bought on 27 Sep 2024 from LDLC
    Number of reviews: 3 Average rating: 10

    Perfect for the price.

    Well-designed casing: there's enough space to easily assemble and organise your cables (with a modular power supply).
    Two minor, but forgivable, drawbacks at this price:
    1. As it is very perforated, it is not at all silent.
    2. The magnetic mesh system isn't the best idea, it moves as soon as you touch it a little, and some of the screws are right behind it, so it makes dents.

    Model: Cooler Master MasterBox Q300L
    Review automatically translated
  • by MiloG
    Posted on 30 Jul 2024
    Bought on 25 Nov 2021 from LDLC
    Number of reviews: 8 Average rating: 9

    Very compact case

    For this price, it's interesting for a small configuration. However, the space inside is very limited so you quickly end up having trouble fitting everything in (ATX configuration for me) but for a mini ATX I think it's perfect.

    Model: Cooler Master MasterBox Q500L
    Review automatically translated