Lian Li A3-mATX-WD-26.3L Micro Form Factor vs RUIX OV303 ATX Mid-Tower PC Case, Pre-Installed 4 x
Updated July 2026 — RUIX OV303 ATX Mid-Tower PC Case, Pre-Installed 4 x leads on gpu length and size.
The Lian Li A3-mATX-WD offers a stylish compact design with excellent cooling, while the RUIX OV303 provides more space and pre-installed fans at a lower price. Choose based on your specific needs.
Why Lian Li A3-mATX-WD-26.3L Micro Form Factor is better
Cooling
Supports more fans and a 360mm radiator
Design
Stylish walnut wood front panel
Modularity
Flexible PSU installation options
Why RUIX OV303 ATX Mid-Tower PC Case, Pre-Installed 4 x is better
Price
Cheaper at $75.99
Pre-installed Fans
Comes with 4 ARGB fans
Space
Supports larger GPUs and more storage
Overall score
Specifications
| Spec | Lian Li A3-mATX-WD-26.3L Micro Form Factor | RUIX OV303 ATX Mid-Tower PC Case, Pre-Installed 4 x |
|---|---|---|
| Cooling | Excellent | Good |
| Design | Modern | Sleek |
| USB Ports | None | USB 3.0 & Type-C |
| Assembly | Easy | Moderate |
| Price | $89.99 | $75.99 |
Dimension comparison
Overview of the Lian Li A3-mATX-WD and RUIX OV303
The Lian Li A3-mATX-WD and RUIX OV303 are two distinct PC cases designed for different user needs and preferences. The Lian Li A3-mATX-WD is priced at $89.99, while the RUIX OV303 is about 17% cheaper at $75.99. Both cases offer unique features that cater to various building styles and hardware requirements.
Design and Aesthetics
When it comes to design, the Lian Li A3-mATX-WD stands out with its stylish walnut wood front panel, lending it a modern and minimalist look. In contrast, the RUIX OV303 features a sleek, black mid-tower design with three tempered glass panels that enhance its visual depth. While the Lian Li emphasizes a compact design suited for smaller setups, the RUIX’s panoramic glass offers an aesthetic appeal that allows users to showcase their internal components effectively.
Cooling Capabilities
Cooling is a critical factor in any PC case, and both the Lian Li A3-mATX-WD and RUIX OV303 provide effective cooling solutions. The Lian Li can support up to 10 x 120mm fans and a 360mm radiator, making it an excellent choice for high-TDP GPUs and demanding setups. On the other hand, the RUIX OV303 comes pre-installed with four high-performance 120mm ARGB fans and can support up to 10 fans or 7 fans with a 360mm AIO cooler. This makes the RUIX more user-friendly right out of the box for those looking for immediate airflow solutions.
Space and Compatibility
In terms of space and hardware compatibility, the Lian Li A3-mATX-WD accommodates mATX and ITX motherboards, with support for GPUs up to 415mm in length. It provides flexibility in power supply installation, allowing for various orientations. The RUIX OV303, however, offers even more spacious compatibility, supporting GPUs up to 420mm and multiple storage options, including two 3.5-inch hard drives and one 2.5-inch hard drive. This makes the RUIX a better choice for users looking to build larger setups with more storage capabilities.
Installation and Assembly
The assembly process can greatly influence user experience, and both cases are designed with ease of installation in mind. The Lian Li A3-mATX-WD features a modular design that simplifies cable management, allowing for a clean and organized build. Meanwhile, the RUIX OV303 is designed with a built-in GPU support bracket, which not only aids in installation but also prevents heavy graphics cards from putting strain on the motherboard. This additional support makes the RUIX a more accessible option for first-time builders or those who prioritize ease of use.
Connectivity Options
Connectivity is also an important consideration when selecting a PC case. The Lian Li A3-mATX-WD does not specify any USB ports, which may be a drawback for users looking for easy access to external devices. In contrast, the RUIX OV303 includes both USB 3.0 and Type-C ports, providing greater versatility in connecting modern peripherals. This feature may be particularly appealing for gamers and content creators who frequently connect multiple devices.
Noise Levels
Noise levels are often a concern for PC builders, especially those who want a quiet working environment. The Lian Li A3-mATX-WD, with its high airflow steel mesh panels, is designed to promote effective cooling while minimizing noise, making it suitable for quieter builds. The RUIX OV303, while featuring multiple fans, does not explicitly mention noise levels but focuses on airflow and dust protection to maintain optimal performance. Users should consider their sensitivity to noise when choosing between these two cases.
Which should you buy?
Choosing between the Lian Li A3-mATX-WD and the RUIX OV303 ultimately depends on your specific needs and preferences. If you prioritize a compact design with a stylish wood front panel and robust cooling capabilities, the Lian Li A3-mATX-WD may be the right fit for you at $89.99. However, if you're looking for a more economical option that offers a spacious layout, pre-installed fans, and excellent connectivity features at $75.99, the RUIX OV303 stands out as a compelling choice. Each case has its unique advantages, making it crucial to consider what aspects matter most to your build.

