Overview

The Cooler Master MasterBox 540 (model number: MB540-KGNN-S00) is a gaming-oriented ATX mid-tower case featuring an ARGB strip light integrated into the front panel. It comes standard with a tempered glass side panel, letting you show off your internal component layout and lighting setup.
This case supports up to seven 120mm fans and offers space for 360mm radiators in both the top and front positions. It accommodates graphics cards up to 410mm long, CPU coolers up to 165mm tall, and power supplies up to 180mm deep, providing ample room for high-end builds.
Positioned in the mid-range of Cooler Master's gaming case lineup, the MasterBox 540 balances ARGB aesthetics with practical expandability. The included controller lets you adjust lighting without a motherboard connection, while pairing with an ARGB-capable motherboard unlocks even more customization options.

Compatibility Guide

The MasterBox 540 supports ATX, Micro-ATX, and Mini-ITX motherboards. Whether you're building a standard ATX rig or a more compact Micro-ATX system, this case accommodates a wide range of board sizes.
Graphics card clearance extends to 410mm, which covers virtually all current high-end GPUs on the market. CPU cooler clearance is 165mm, so large air coolers and 280mm-class AIO liquid coolers will fit without issue.
Power supply support reaches 180mm in depth, meaning even the longer ATX units used in high-wattage builds will fit comfortably. The case includes drive bays for both 3.5-inch and 2.5-inch storage devices, allowing flexible HDD and SSD configurations.

Product Info

The MasterBox 540 sits in the mid-tier of Cooler Master's gaming case lineup. It offers ARGB strip lighting and a tempered glass side panel as standard features while keeping the price relatively accessible.
This product is sold as an official Japanese authorized distributor item with a 2-year manufacturer warranty. It's available through major online retailers like select PC parts stores.
On the cooling front, the case supports 360mm radiators in both the front and top positions. Whether you prefer an airflow-focused air-cooled build or a full liquid-cooling setup, the design delivers strong thermal performance.

Best Use Cases

First, this case is ideal for gamers who prioritize ARGB lighting. The front ARGB strip can be customized via the included controller, and syncing with an ARGB-capable motherboard creates a cohesive lighting theme across the entire system.
Second, it suits users planning to install a high-end GPU. With clearance for graphics cards up to 410mm, even the largest triple-fan models fit with room to spare.
Third, it's a strong choice for liquid cooling enthusiasts. Dual 360mm radiator support in the top and front allows for ambitious CPU-plus-GPU water-cooling configurations.
On the other hand, users seeking a compact PC or those uninterested in RGB lighting may find this case overkill. A smaller or more minimalist case would serve those needs better.

Things to Consider

As a mid-tower case, the MasterBox 540 requires a fair amount of desk or floor space. It weighs approximately 7.7kg, so consider the strength of your installation surface and how often you'll need to move it.
The tempered glass side panel looks great but demands careful handling. It can shatter on impact, so removing the panel before transporting the case is the safer approach.
Also, syncing the ARGB lighting with your motherboard requires an ARGB header on the board. If your motherboard lacks ARGB support, you'll be limited to controlling the lighting through the included controller only.

FAQ

Q: How many 360mm radiators can this case accommodate?
A: You can install 360mm radiators in both the top and front positions, enabling a dual 360mm radiator setup.
Q: Can the included ARGB controller sync with my motherboard?
A: Yes, it can sync when connected to an ARGB-capable motherboard. If your motherboard doesn't support ARGB, you can still control the lighting using the included controller on its own.
Q: What is the maximum graphics card length supported?
A: The case supports graphics cards up to 410mm long, which covers virtually all current high-end GPUs.

Product Disclosure (Amazon)

  • Manufacturer: Cooler Master
  • Seller: サザンクロストレーディング
  • Fulfilled by: サザンクロストレーディング
  • ASIN: B08W1ZJT1K
  • Note: This article covers a manufacturer-made product based on Amazon listing details.