Cooler Master MasterBox Q300L Micro-ATX PC Case – vs HYXN H3 HYXN ATX PC Case - Pre-Installed with 3
Updated July 2026 — Cooler Master MasterBox Q300L Micro-ATX PC Case – wins on depth and fan support, HYXN H3 HYXN ATX PC Case - Pre-Installed with 3 wins on height and width.
The Cooler Master MasterBox Q300L is a budget-friendly option with good functionality, while the HYXN H3 offers superior cooling and modern aesthetics. Choose based on your needs.
Why Cooler Master MasterBox Q300L Micro-ATX PC Case – is better
Price
Cooler Master Q300L is $39.99, cheaper than HYXN H3 at $54.99.
Modular I/O
Q300L has a modular I/O panel adjustable to six locations.
Compact Size
Q300L is more compact, suitable for smaller spaces.
Why HYXN H3 HYXN ATX PC Case - Pre-Installed with 3 is better
Cooling
HYXN H3 supports up to 360mm radiators and includes 3 ARGB fans.
GPU Compatibility
HYXN H3 accommodates GPUs up to 400mm, more than Q300L.
Cable Management
HYXN H3 features an A/B partition design for better cable organization.
Overall score
Specifications
| Spec | Cooler Master MasterBox Q300L Micro-ATX PC Case – | HYXN H3 HYXN ATX PC Case - Pre-Installed with 3 |
|---|---|---|
| Cooling Support | 240mm | 360mm |
| Motherboard Size | Micro-ATX | ATX/M-ATX/ITX |
| I/O Panel | Modular | Type-C 3.2 |
| Material | Steel/Plastic | Tempered Glass |
| Weight | 3.5kg | 5.0kg |
Dimension comparison
Design and Aesthetics
The Cooler Master MasterBox Q300L is designed to be compact yet functional, while the HYXN H3 offers a more modern aesthetic with its dual-chamber design and pre-installed ARGB fans. The MasterBox Q300L features a transparent side panel that allows users to showcase their build, while the HYXN H3 comes with high-hardness tempered glass that highlights every detail of the hardware inside. The cube-like design of the MasterBox Q300L makes it stand out in any setting, whereas the sleek, modern look of the HYXN H3 appeals to gamers looking for a visually striking case.
Cooling Capabilities
Cooling performance is a strong point for both cases, but they approach it differently. The Cooler Master MasterBox Q300L allows for a maximum of five fans and supports a 240mm liquid cooler, ensuring efficient airflow and heat dissipation. On the other hand, the HYXN H3 supports larger cooling solutions, accommodating up to a 360mm radiator. Additionally, it comes pre-installed with three ARGB fans, enhancing not just cooling but also the overall aesthetic. This makes the HYXN H3 particularly appealing for users who prioritize both performance and visual flair in their builds.
Interior Space and Compatibility
The Cooler Master MasterBox Q300L offers ample interior space for Micro-ATX or Mini-ITX motherboards, supporting CPU coolers with a height of up to 159mm and GPUs up to 360mm. In contrast, the HYXN H3 is compatible with ATX, M-ATX, and ITX motherboards and can accommodate GPUs up to 400mm long. This means the HYXN H3 provides more flexibility for high-end graphics cards, making it a better choice for those looking to build a powerful gaming rig. Both cases have been designed to ensure easy expansion, but the HYXN H3 edges out in terms of GPU compatibility.
Price Comparison
When it comes to pricing, the Cooler Master MasterBox Q300L is currently priced at $39.99, making it about 27% cheaper than the HYXN H3, which retails for $54.99. This significant price difference may appeal to budget-conscious users who still want a reliable and aesthetically pleasing case. However, the additional features and capabilities of the HYXN H3 may justify its higher price for users who are looking for enhanced cooling and modern design elements.
Cable Management
Cable management is crucial for a clean and organized build, and both cases have unique approaches. The Cooler Master MasterBox Q300L provides a simple interior layout that allows for easy cable routing, but it lacks specific features aimed at managing cables. Conversely, the HYXN H3 adopts an A/B partition design which simplifies cable management further and includes built-in anchor points for a cleaner wiring setup. This design not only enhances airflow but also leads to a more aesthetically pleasing build, making the HYXN H3 a better option for users who prioritize cable organization.
User Experience and Accessibility
Both cases offer a user-friendly experience but cater to different user needs. The Cooler Master MasterBox Q300L features a modular I/O panel that can be adjusted to six different locations, allowing for customization based on user preference. This flexibility is beneficial for users who want to optimize their setup. Meanwhile, the HYXN H3 provides a more streamlined front I/O panel with Type-C 3.2 connectivity, ensuring faster data transfer speeds. This modern feature makes the HYXN H3 more accessible for users who frequently use USB-C devices.
Target Audience
The target audiences for these two cases differ significantly. The Cooler Master MasterBox Q300L is ideal for users looking for a compact, budget-friendly solution that offers good functionality without overwhelming visual features. This makes it suitable for both office and home use. In contrast, the HYXN H3 is aimed at gamers and enthusiasts who are willing to invest more for superior cooling capabilities and modern aesthetics. Its dual-chamber design and RGB features cater to a demographic that values performance and style.
Which should you buy?
Choosing between the Cooler Master MasterBox Q300L and the HYXN H3 ultimately depends on your specific needs and budget. If you're looking for a compact, affordable case that offers good functionality, the Cooler Master MasterBox Q300L is an excellent choice at $39.99. However, if you want enhanced cooling capabilities, superior GPU compatibility, and modern aesthetics, the HYXN H3, priced at $54.99, is worth the investment. Each case has its strengths, so consider what features matter most to you before making a decision.

