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Cooler Master MasterBox Q300L Micro-ATX PC Case – vs GeeekPi Metal Case for Raspberry Pi 5

Updated July 2026 — Cooler Master MasterBox Q300L Micro-ATX PC Case – leads on depth and width.

The Cooler Master MasterBox Q300L offers superior features and expandability compared to the GeeekPi Metal Case, making it the better choice for PC builders. However, the GeeekPi case is a budget-friendly option for Raspberry Pi users.

Why Cooler Master MasterBox Q300L Micro-ATX PC Case – is better

Cooling Options

Supports multiple fans and liquid cooling.

Expandability

Compatible with Micro-ATX and Mini-ITX motherboards.

Design

Modern aesthetic with a transparent side panel.

Why GeeekPi Metal Case for Raspberry Pi 5 is better

Price

Significantly cheaper at $22.50.

Targeted Design

Specifically designed for Raspberry Pi 5.

Included Accessories

Comes with tools for easy setup.

Overall score

Cooler Master MasterBox Q300L Micro-ATX PC Case –
85
GeeekPi Metal Case for Raspberry Pi 5
65

Specifications

SpecCooler Master MasterBox Q300L Micro-ATX PC Case –GeeekPi Metal Case for Raspberry Pi 5
Cooling SupportUp to 5 fansActive cooler
MaterialSteel & PlasticMetal
I/O PanelModularFixed
CompatibilityMicro-ATXRaspberry Pi 5
Price$39.99$22.50

Dimension comparison

Cooler Master MasterBox Q300L Micro-ATX PC Case –GeeekPi Metal Case for Raspberry Pi 5

Overview of the Cooler Master MasterBox Q300L

The Cooler Master MasterBox Q300L is a compact Micro-ATX PC case designed for functionality and modularity. Priced at $39.99, it offers a blend of performance and design that appeals to both casual builders and experienced enthusiasts. The case is known for its ample interior space, which can accommodate Micro-ATX or Mini-ITX motherboards, and features such as modular I/O panels and magnetic dust filters that enhance usability.

With a unique perforated airflow design, the MasterBox Q300L promotes optimal cooling while ensuring that your components remain visible through its edge-to-edge transparent side panel. This case is particularly suitable for users looking for a small form factor without compromising on expandability or thermal performance. Its ability to support up to five fans and a 240mm liquid cooler makes it a versatile choice for various build configurations.

Overview of the GeeekPi Metal Case for Raspberry Pi 5

The GeeekPi Metal Case for Raspberry Pi 5 stands out with its price of $22.50, making it about 43% cheaper than the Cooler Master MasterBox Q300L. Designed specifically for the Raspberry Pi 5, this case includes an active cooler that combines an aluminum heatsink with a PWM fan, ensuring that the Raspberry Pi 5 maintains optimal operating temperatures during intensive tasks.

This case is fully compatible with the Raspberry Pi 5 4GB/8GB board and supports various PCIe peripheral boards (X1000/X1001/X1003/N04/N05). It provides all necessary access to ports while also offering protection from dust and scratches. The package includes essential components like a screwdriver and screws, making it easy for users to set up their Raspberry Pi in a safe, efficient manner.

Design and Build Quality

In terms of design and build quality, the Cooler Master MasterBox Q300L shines with its modern aesthetic and practical features. Its compact form factor does not sacrifice space, allowing for a maximum CPU cooler height of 159mm and GPU cards of up to 360mm in length. The use of a transparent side panel allows users to showcase their builds, while the magnetic dust filters add both design flair and functionality.

Conversely, the GeeekPi Metal Case is more utilitarian in design, focusing on the protective aspects for the Raspberry Pi. While it offers a robust metal construction, it lacks the visual appeal of the Cooler Master case. However, its design is tailored specifically for the Raspberry Pi 5, providing essential access to all ports and ensuring optimal airflow for the active cooling system.

Cooling Performance

Cooling performance is a standout feature for both cases, but they cater to different needs. The Cooler Master MasterBox Q300L can support multiple cooling solutions, including a 240mm liquid cooler and up to five additional fans. This flexible cooling setup is ideal for gaming or high-performance builds where thermal management is crucial.

On the other hand, the GeeekPi Metal Case comes with an active cooler specifically designed for the Raspberry Pi 5. This cooler effectively combines an aluminum heatsink with a PWM fan to maintain low temperatures, essential for the Raspberry Pi's performance during demanding applications. While it doesn't offer the same level of cooling flexibility as the MasterBox, it is adequate for the needs of Raspberry Pi users.

Compatibility and Expandability

The Cooler Master MasterBox Q300L is designed for those who require compatibility with Micro-ATX or Mini-ITX motherboards, making it a great choice for a wide range of builds. The case's ample interior space allows for future upgrades, whether adding more storage or enhancing the cooling system. With the ability to adjust the I/O panel to various positions, it offers remarkable flexibility for different setups.

In contrast, the GeeekPi Metal Case is more limited in its compatibility, specifically catering to the Raspberry Pi 5. While it supports various peripheral boards, it does not provide the same level of expandability as the MasterBox. However, for Raspberry Pi enthusiasts, this case presents an ideal solution, offering easy access to all necessary ports and components without the need for extensive modifications.

Price to Performance Ratio

When comparing price to performance, the Cooler Master MasterBox Q300L is priced at $39.99, while the GeeekPi Metal Case is available for just $22.50. This makes the GeeekPi case approximately 43% cheaper, which is significant for those on a tight budget. However, the MasterBox offers a much broader range of features and capabilities, especially for users looking to build a powerful gaming or workstation PC.

The additional investment in the Cooler Master case may be justified for those seeking a long-term solution that allows for various upgrades and enhanced performance. Conversely, the GeeekPi case is an excellent budget-friendly option for Raspberry Pi users focused on basic functionality without the need for extensive customization or upgrades.

User Experience

User experience varies significantly between the two products due to their target audiences. The Cooler Master MasterBox Q300L is designed for PC builders who appreciate a customizable and visually appealing setup. Its modular I/O panel, dust filters, and spacious interior contribute to an enjoyable building experience, allowing users to focus on aesthetics and performance.

The GeeekPi Metal Case, however, caters to Raspberry Pi users who prioritize functionality over design. Its straightforward assembly process, combined with essential tools included in the package, makes it accessible for beginners. Users can quickly set up their Raspberry Pi 5 without needing advanced skills or knowledge, providing a hassle-free experience.

Which should you buy?

Choosing between the Cooler Master MasterBox Q300L and the GeeekPi Metal Case ultimately depends on your specific needs. If you're looking for a versatile, feature-rich case for a Micro-ATX build, the MasterBox Q300L offers excellent expandability and cooling options at $39.99. However, for those solely focused on the Raspberry Pi 5, the GeeekPi Metal Case is a more economical choice at $22.50, providing essential protection and cooling without unnecessary frills. Ultimately, your choice should align with your intended use and budget constraints.