Rosewill 3U Server Chassis Rackmount Case, 6X 3.5 vs Zalman CUBIX Compact Mini Tower mATX PC Case,
Updated August 2026 — Rosewill 3U Server Chassis Rackmount Case, 6X 3.5 leads on height and width.
The Rosewill case excels in features and performance, making it ideal for server applications, while the Zalman case offers great value for compact builds.
Why Rosewill 3U Server Chassis Rackmount Case, 6X 3.5 is better
Cooling
Rosewill has dual fans for better airflow.
Expansion
Rosewill supports E-ATX and has more PCI slots.
Connectivity
Rosewill offers two USB 3.0 ports.
Why Zalman CUBIX Compact Mini Tower mATX PC Case, is better
Price
Zalman is significantly cheaper.
Size
Zalman is more compact for small spaces.
Weight
Zalman is lighter due to its smaller design.
Overall score
Specifications
| Spec | Rosewill 3U Server Chassis Rackmount Case, 6X 3.5 | Zalman CUBIX Compact Mini Tower mATX PC Case, |
|---|---|---|
| Form Factor | E-ATX | mATX |
| HDD Bays | 6 | 2 |
| PCI Slots | 4 | 2 |
| USB Ports | 2x USB 3.0 | 1x USB 3.0, 1x USB 2.0 |
| Cooling Fans | 2x 80mm | 1x 80mm |
Dimension comparison
Design and Build Quality
The design and build quality of the Rosewill 3U Server Chassis Rackmount Case is robust, intended for server use, while the Zalman CUBIX Compact Mini Tower mATX PC Case offers a sleek, compact design suitable for smaller setups. The Rosewill case features a roomy chassis with six internal 3.5" HDD bays, making it ideal for those needing significant storage. In contrast, the Zalman case is constructed with heavy-duty 0.8T steel, ensuring durability while maintaining a total volume of 17.1 liters. This feature allows for a compact footprint, fitting well into tighter spaces without sacrificing sturdiness.
Cooling Performance
Cooling performance is a critical aspect of PC cases, and both cases offer unique advantages. The Rosewill chassis comes with two pre-installed 80mm PWM front cooling fans, promoting excellent airflow and heat protection, which is essential for server environments. The Zalman case also emphasizes airflow with its perforated front panel and includes one pre-installed 80mm fan. While both cases aim for effective cooling, the Rosewill's dual fan setup may provide a more robust cooling solution for high-performance builds compared to Zalman's single fan configuration.
Compatibility and Expansion Options
When it comes to compatibility and expansion, the Rosewill case stands out with its E-ATX compatibility and four PCI expansion slots, making it a versatile option for users who wish to upgrade their systems over time. This design allows for extensive customization and expansion of components. On the other hand, the Zalman case supports Micro-ATX, DTX, ITX, and SFF form factors, accommodating a variety of motherboard sizes. While the Zalman case supports standard ATX power supplies and can fit GPUs up to 260mm in length, its expansion options are somewhat limited compared to the Rosewill's more extensive capabilities.
Connectivity Features
Connectivity is another area where these cases differ significantly. The Rosewill case includes two USB 3.0 ports, providing high-speed data transfer options for external devices, alongside LED indicators for power, HDD, and LAN status monitoring. This feature allows for quick and easy visual assessments of system status. The Zalman case, while it offers one USB 3.0 port, also includes a USB 2.0 port and a 3.5mm stereo AUX input for added versatility in connecting devices. However, the dual USB 3.0 ports of the Rosewill give it a slight edge in terms of modern connectivity options.
Price Comparison
The price difference between these two cases is quite significant, with the Rosewill retailing at $129.99 and the Zalman priced at $39.95. This means the Rosewill is approximately 225% more expensive than the Zalman. For users on a budget or those who do not require extensive features, the Zalman case presents a highly affordable option for building a compact PC. Conversely, those needing a more capable chassis with additional features might find the higher price of the Rosewill justifiable.
Target Audience
The target audience for each case varies based on their intended use. The Rosewill case is designed primarily for server applications, making it more suitable for professionals looking to build robust server systems that require extensive storage and high performance. In contrast, the Zalman case caters to casual users and gamers who value a compact design without sacrificing essential features. This makes the Zalman an excellent choice for home theater PCs or small gaming setups where space is at a premium.
Overall Performance
In terms of overall performance, the Rosewill case may offer a stronger foundation for high-performance computing needs due to its compatibility with larger motherboards and enhanced cooling capabilities. Its design is specifically tailored for heavy-duty use, which is beneficial for users who frequently run demanding applications. The Zalman case, while effective for smaller systems, is better suited for everyday tasks and light gaming, providing adequate performance in a compact form factor without the need for extensive expansion.
Which should you buy?
Choosing between the Rosewill 3U Server Chassis Rackmount Case and the Zalman CUBIX Compact Mini Tower mATX PC Case ultimately depends on your specific needs and budget. If you require a robust, expandable solution for server applications with excellent cooling and connectivity features, the Rosewill is the better choice despite its higher price. However, if you're looking for an affordable, compact case for light computing or gaming, the Zalman offers great value without compromising on essential features.

