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Cooler Master

Cooler Master MasterBox Q500L - ATX Mini Tower Case with Full Side Panel Display, Clean Routing, and Multiple Cooling Options

Name: Cooler Master MasterBox Q500L - ATX Mini Tower Case with Full Side Panel Display, Clean Routing, and Multiple Cooling Options
Brand: Cooler Master
SKU: B07QL94H93
Price: 39.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-21

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$39.99

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View Current Price on Amazon → Compare to similar pc cases

*Price sourced from Amazon.com. Last updated 2026-08-05. Price and availability subject to change.

Bottom line: The Cooler Master MasterBox Q500L - ATX Mini Tower Case with Full Side Panel Display, Clean Routing, and Multiple Cooling Options is a specs-and-price decision rather than a crowd-consensus one in the pc cases category, priced around $39.99. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

Pros & Cons

Pros

✓ Backed by Cooler Master's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

ORIENTATION & A MOVABLE I/O PANEL The modular Master Box Q500L can orient vertically and horizontally with rubberized thumbscrews that also act as feet. Depending on hardware configuration, the movable I/O panel can be relocated to multiple positions to retain its accessibility. VERSATILE PSU BRACKET The PSU bracket enables the PSU to adapt to different clearance requirements and motherboard form factors. The PSU bracket can shift up or down for top radiator/graphics card clearance and can also be relocated for ITX systems. FULLY PERFORATED CHASSIS The top, front, rear, and bottom panels are…

SpecPicks Verdict

SpecPicks scored Cooler Master MasterBox Q500L - ATX Mini Tower Case with Full Side… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the pc cases category. Cooler Master's pc cases lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for pc cases of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Key Features

PATTERNED MAGNETIC DUST FILTERS - The custom-designed front and top magnetic dust filters are completely removeable and present a sophisticated, yet cunningly minimalist, functional chassis facade.
VERTICAL OR HORIZONTAL- The MasterBox case features rubberized thumbscrews that enable either a standing or laying orientation with fully-perforated panels for multiple airflow configurations.
MULTIPLE COOLING OPTIONS - The bottom panel supports up to two 120mm fans; the rear a 120mm fan or 120mm radiator; the top up to two 120mm/140mm fans or a 120/240mm liquid cooler radiator.
EDGE-TO-EDGE DISPLAY - The square edge-to-edge transparent side panel enables a full display of any system build, and includes an I/O panel which can be rotated into 3 different orientations on either side. Behind the motherboard tray is 28mm of allocated space for clean cable management.
SUPPORTS STANDARD ATX - When housing a standard ATX motherboard, the PSU is mounted to the top-front of the chassis inside a height-adjustable bracket. For mini-ITX builds, the PSU can be placed in the conventional bottom-rear position for increased front panel ventilation.

Full Specifications

Brand	Cooler Master
Color	Black
Fan Size	12 centimeters
Material	Rubber
Case Type	Mid Tower
Model Name	MasterBox Q500L
Unit Count	1 Count
Model Number	MCB-Q500L-KANN-S00
Cooling Method	Air
Item Type Name	ATX Case
Number of Fans	1
Mfr Part Number	MCB-Q500L-KANN-S00
Total Usb Ports	2
Antenna Location	Home Needs
Compatible Devices	CPU
Enclosure Material	Rubber
Total USB 2.0 Ports	2
Total USB 3.0 Ports	2
Hard Disk Form Factor	3.5 inches
Supported Motherboard	ATX

Ready to buy?

Cooler Master MasterBox Q500L - ATX Mini Tower Case with Full Side Panel Display, Clean Routing, and Multiple Cooling Options is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-08-05. Price and availability subject to change.