# Cooler Master MasterBox MB520 RGB ATX Mid Tower Case Tempered Glass Window 3x RGB LED Fans - Black - MCB-B520-KGNN-RGB

- Category: Case
- Brand: Cooler Master
- Model: MasterBox MB520
- Part number: MCB-B520-KGNN-RGA
- Price (US): currently unavailable
- Price last checked: 2026-08-05
- Rating: 4.6/5 from 6161 Amazon reviews
- Warranty: 1 year
- Product page: https://buildmypc.net/component-details/case/cooler-master-masterbox-mb520-argb/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Cooler Master |
| Model | MasterBox MB520 |
| Cabinet Type | ATX Mid Tower |
| Side Panel | Tempered Glass |
| Color | Black |
| Power Supply | N/A |
| Maximum 3.5 Drive Space | 2 |
| Maximum 2.5 Drive Space | N/A |
| GPU Length | 400 mm / 15.748" |
| Supported PSU Size | ATX |

## Key Features

- DarkMirror Front Panel: Shade light through the DarkMirror front panel for a sharper contrast of the ARGB fans
- Mesh Intakes: Large, mesh intakes span each side of the front panel to provide additional airflow to system
- ARGB Lighting System: Three pre-installed ARGB fans can be managed by either the motherboard or an included controller, connected by the included splitter, to create a comprehensive ARGB lighting system
- Tempered Glass: Hardware, custom-loop cooling, and the pure pride of the builder is shown in panoramic view through an edge-to-edge tempered glass side panel
- Optimized Airflow: Filtered ventilation on the top panel provides additional thermal support while also offering mounting options for future cooling upgrades

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