Cooler Master

Cooler Master MasterBox 520 Mesh PC Case

Name: Cooler Master MasterBox 520 Mesh PC Case – Mid-Tower ATX Chassis with 3 x Pre-Installed Fans, Multiple Airflow Configurations, Mesh Front Panel & TG
Brand: Cooler Master
SKU: B0B31GFVKS

Status: Cooler Master MasterBox 520 Mesh PC Case: Unavailable on Amazon as of 2026-10-05 04:33 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

🛒 Search eBay for this model

Bottom line: The Cooler Master MasterBox 520 Mesh PC Case is a specs-and-price decision rather than a crowd-consensus one in the pc cases category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Unavailable on Amazon as of 2026-10-05 04:33 UTC

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: LIAN LI High Airflow ATX PC Case — $109.99 on Amazon as of 2026-10-06 20:25 UTC (price may vary).

View Current Price — $109.99

Similar: Cooler Master MasterBox 500 PC Case - Mid-Tower… — $261.00 on Amazon as of 2026-10-06 10:23 UTC (price may vary).

View Current Price — $261.00

Similar: RAIDMAX V217 ATX Mid Tower Mesh Gaming PC Case — $59.99 on Amazon as of 2026-10-07 04:20 UTC (price may vary).

View Current Price — $59.99

Original listing (currently unavailable) → Compare to similar pc cases

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-05

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ Backed by Cooler Master's warranty and support channels

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

Cooler Master MasterBox 520 Mesh is the ideal chassis for novice and experienced gamers alike. The front panel of the MasterBox 520 Mesh sports a full-mesh with 3 ARGB fans that can be set to match the colour scheme of the system via an included ARGB controller - includes a pre-installed 120mm rear fan. Despite its compact mid-tower form, the case supports up to seven 120mm fans and dual 360mm radiators in the front & top panels. The entire top panel, HDD cage & dust filter bracket can be removed, making it easier to route large radiators, install fans, or simply provide easier access to…

SpecPicks Verdict

SpecPicks scored Cooler Master MasterBox 520 Mesh PC Case using a rating × review-volume × price-fit model applied to published specs and reviews 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

MESH FRONT PANEL – The front panel features a combination of mesh and 3 x CF120 ARGB fans for unrestricted airflow; Illumination can be assigned via the included ARGB controller (pre-routed to a Reset/ARGB button);
IMPRESSIVE CLEARANCES - The MasterBox 520 interior accommodates E-ATX (up to 12” x 10.7”), ATX, micro-ATX and mini-ITX motherboards; CPU coolers up to 165mm in height; Graphics cards (GFX/GPU) up to 410mm in length; ATX PSUs up to 200mm in length
MULTIPLE COOLING OPTIONS – Comes with 3 x CF120 ARGB frontal fans; The front & top panels each support up to 3 x 120mm fans/2 x 140mm fans, or a 360mm radiator, the rear panel supports 1 x 120mm fan/radiator
TEMPERED GLASS SIDE PANEL - Premium systems can be installed, accessed, and showcased through the tempered glass side panel, which can be removed easily without tools (an additional screw can be used to further secure the panel)
RICH CONNECTIVITY I/O PANEL - The I/O panel features 1 x USB 3.2 Gen 1 Type-A port, 1 x USB 3.2 Gen 2 Type-C port, 1 x audio jack and 1 x Reset/ARGB button allowing for streamlined data transmission and unlimited connectivity

Full Specifications

Brand	Cooler Master
Color	Black
Fan Size	12 centimeters
Material	Tempered Glass
Case Type	Mid Tower
Model Name	MasterBox 520 Mesh
Unit Count	1 Count
Light Color	Red,Green,Blue
Connectivity	USB
Model Number	MB520-KGNN-S00
Compatibility	PC
Cooling Method	Air
Item Type Name	PC Chassis
Number of Fans	3
Mfr Part Number	MB520-KGNN-S00
Number of Items	1
Total Usb Ports	2
Antenna Location	Gaming
Compatible Devices	Desktop computers with Extended ATX, micro-ATX, mini-ITX, or ATX motherboards
Enclosure Material	Tempered Glass
Full listing title	Cooler Master MasterBox 520 Mesh PC Case – Mid-Tower ATX Chassis with 3 x Pre-Installed Fans, Multiple Airflow Configurations, Mesh Front Panel & TG Side Panel, ARGB Controller Included - Black

Ready to buy?

Amazon shows no buyable offer for Cooler Master MasterBox 520 Mesh PC Case at the last check. A similar in-stock product is LIAN LI High Airflow ATX PC Case. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $109.99