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Cooler Master NR200 Mini-ITX PC Case – vs RUIX OV303 ATX Mid-Tower PC Case, Pre-Installed 4 x

Updated August 2026 — Cooler Master NR200 Mini-ITX PC Case – wins on width, RUIX OV303 ATX Mid-Tower PC Case, Pre-Installed 4 x wins on height and depth.

The Cooler Master NR200 excels in compact design and cooling efficiency, while the RUIX OV303 offers greater space and versatility. Choose based on your specific needs.

Why Cooler Master NR200 Mini-ITX PC Case – is better

Cooling

Supports up to 6 fans and a 280mm radiator.

Compact Design

Ideal for Mini-ITX builds.

Build Quality

High-quality materials and options for panels.

Why RUIX OV303 ATX Mid-Tower PC Case, Pre-Installed 4 x is better

Space

Supports larger GPUs up to 420mm.

Pre-Installed Fans

Comes with 4 ARGB fans.

Price

More affordable at $75.99.

Overall score

Cooler Master NR200 Mini-ITX PC Case –
85
RUIX OV303 ATX Mid-Tower PC Case, Pre-Installed 4 x
76

Specifications

SpecCooler Master NR200 Mini-ITX PC Case –RUIX OV303 ATX Mid-Tower PC Case, Pre-Installed 4 x
Radiator Support280mm360mm
Motherboard SizeMini-ITXATX
Pre-Installed Fans04
USB PortsNoneUSB 3.0 & Type-C
Cooling EfficiencyHighModerate

Dimension comparison

Cooler Master NR200 Mini-ITX PC Case –RUIX OV303 ATX Mid-Tower PC Case, Pre-Installed 4 x

Introduction to the Cooler Master NR200 and RUIX OV303

When choosing a PC case, two noteworthy options are the Cooler Master NR200 Mini-ITX PC Case and the RUIX OV303 ATX Mid-Tower PC Case. Priced at $83.99 and $75.99 respectively, these cases cater to different needs in terms of size, cooling capacity, and design. The Cooler Master NR200 is ideal for compact builds, while the RUIX OV303 offers more spacious configurations.

Design and Build Quality

The Cooler Master NR200 features a compact design with a sleek 18.25L footprint, making it perfect for Mini-ITX motherboards and small form factor setups. It emphasizes functionality with options for a tempered glass or vented panel. In contrast, the RUIX OV303 presents a mid-tower design with a panoramic view created by three tempered glass panels. This design not only enhances aesthetics but also allows users to showcase their builds. While the NR200 is built for minimalism, the OV303 leans towards a more expansive look, catering to different personal preferences in PC aesthetics.

Cooling Performance

Cooling is a vital aspect of any PC case, and both the Cooler Master NR200 and RUIX OV303 excel in this area, albeit in different ways. The NR200 supports up to 6 x 120mm fans and accommodates a 280mm radiator, ensuring high airflow for compact builds. On the other hand, the OV303 comes pre-installed with 4 x 120mm ARGB fans and can support a total of 10 fans, or 7 fans with a 360mm AIO cooler. The OV303's ability to house more fans makes it potentially better suited for high-performance gaming setups where thermal management is crucial.

Compatibility and Space

When it comes to compatibility, the Cooler Master NR200 is designed exclusively for Mini-ITX motherboards and strictly SFX power supplies, which may limit options for some users. It supports GPUs up to 330mm in length. The RUIX OV303, however, supports ATX motherboards and allows for larger GPUs up to 420mm, making it a more versatile option for various builds. Additionally, the OV303 accommodates multiple storage devices, including two 3.5-inch hard drives and one 2.5-inch hard drive, providing ample space for expansion.

Fan and Radiator Support

In terms of fan and radiator support, the Cooler Master NR200 is equipped to handle high-performance cooling solutions. It can fit a 280mm radiator and up to 6 fans, allowing for a robust cooling setup. The RUIX OV303, meanwhile, not only comes with 4 pre-installed ARGB fans but also supports a total of 10 fans. This gives builders the freedom to enhance airflow significantly, especially in high-heat scenarios. The OV303’s ability to support a comprehensive cooling system makes it a strong contender for users looking for extensive thermal management.

User Experience and Installation

The installation experience can vary between these two cases. The Cooler Master NR200 is designed for a more compact build process, which may pose challenges in terms of space for cable management. However, its removable side bracket allows for easy installation of large radiators or fans. The RUIX OV303, with its spacious interior and built-in GPU support bracket, simplifies the installation process and enhances the overall user experience. The presence of magnetic dust filters on the OV303 further ensures maintenance is straightforward, as it helps keep the interior clean without the hassle of disassembly.

Pricing and Value

Regarding pricing, the Cooler Master NR200 is priced at $83.99, while the RUIX OV303 is available for $75.99, making the latter about 9.5% cheaper. This lower price point makes the RUIX OV303 an attractive option for budget-conscious builders who still want solid features and aesthetic appeal. The Cooler Master NR200, although more expensive, offers a compact design that some users may find essential for their specific requirements, potentially justifying the higher price for those who prefer Mini-ITX builds.

Which should you buy?

In conclusion, your choice between the Cooler Master NR200 and the RUIX OV303 largely depends on your specific needs and preferences. If you're looking for a compact, high-performance case designed for Mini-ITX builds, the Cooler Master NR200 is an excellent option with impressive cooling capabilities. However, if you need a more spacious case with greater compatibility for larger components and extensive cooling options, the RUIX OV303 is the better choice, particularly at its lower price point. Each case has its strengths, and the best choice ultimately hinges on your individual gaming or computing setup requirements.