The MSI MPG VELOX 300R AIRFLOW PZ isn’t just a PC case — it’s a benchmark in thoughtful design and performance optimization for gamers and PC builders alike. From the moment you unbox this mid-tower marvel, its premium quality stands out. The sleek black or clean white finish, accented by a tempered glass side panel, is an instant nod to MSI’s futuristic MPG design philosophy. It strikes a balance between bold gamer aesthetics and refined minimalism, making it an easy fit in any setup. MSI even includes a customizable MPG sticker for those looking to add a personal touch to their rig.
This case is engineered for optimal airflow and thermal control, making it a solid choice for high-performance systems. It comes equipped with three pre-installed Dual Layer Blade fans — two 160 mm ARGB fans up front and a 120 mm black fan at the rear. These aren’t just flashy add-ons — they work efficiently to cut down noise and eliminate air turbulence, focusing airflow where it’s needed most.

On paper, the cooling improvement might seem minor, but in practice, those few degrees can mean the difference between stable performance and throttling during overclocking or long gaming marathons. For those who crave flexibility, the chassis supports up to 13 fans and radiators as large as 360 mm across the front, top and side and can be installed with two 360 mm radiators simultaneously.
“All things considered, the MSI MPG VELOX 300R Airflow PZ delivers a rare balance of airflow performance, streamlined installation and generous compatibility.”
If you’re into custom water cooling, the built-in mount for pumps or full distribution plates gives you plenty of room to build detailed loops. The manual fan control button offers three speed presets — 1,600, 1,300 or 1,000 r.p.m. — so you can dial in high airflow or a nearly silent system. At its quietest, fan noise stays just above 20 dB(A), about as subtle as a soft breeze. This kind of control makes it easy to tailor your cooling setup, whether you’re deep in a gaming session, multitasking while streaming, or simply enjoying some quiet downtime.
The VELOX 300R stands out where it matters most — ease of installation. MSI’s EZ Bracket system simplifies fan adjustments, letting users shift between 160 mm, 140 mm or 120 mm front fans without fussing over screws or tight spaces. Installing the power supply is just as smooth thanks to the snap-and-lock PSU shroud, which also helps keep cables neatly tucked away. For those aiming for clean, professional builds, MSI includes pre-installed Velcro straps and full support for back-connect motherboards like the Project Zero series, resulting in a streamlined interior that looks as sharp as it performs.

Beyond convenience, this case is packed with smart touches to enhance the build experience. A sturdy, pre-installed GPU support bracket handles heavier cards — up to 400 mm long — ensuring they stay level whether you’re using a mid-tier model or something like the RTX 5090 Suprim Liquid. There’s also optional vertical GPU mounting via a riser cable, giving builders even more room for creativity. Maintenance is simplified, too, with magnetic dust filters on every intake and exhaust point and an integrated hub for fan and ARGB management, making airflow and lighting customization effortless.
“The VELOX 300R stands out where it matters most — ease of installation.”
RGB lovers have plenty to enjoy here. The VELOX 300R comes with a top-mounted LED button offering 18 preset lighting modes, letting users fine-tune their setup’s look without diving into software — though Mystic Light sync remains available for those who want it. The front I/O is clean and efficient, including two USB Type-A (5 Gbps), one high-speed USB-C (20 Gbps), a combo audio jack, and separate controls for power and lighting.

Internally, the case supports EATX boards up to 305 by 278 mm (the pre-installed GPU support bracket is recommended to be removed when choosing EATX boards), CPU coolers up to 165 mm tall, and PSUs up to 200 mm long. Storage is well covered with mounts for four 2.5-inch SSDs, one 3.5-inch HDD, and a flexible combo tray on the pump bracket.
All things considered, the MSI MPG VELOX 300R Airflow PZ delivers a rare balance of airflow performance, streamlined installation and generous compatibility. It’s clearly built for more than just enthusiasts — it’s welcoming to both first-time builders and seasoned pros alike. This case is designed to evolve with your setup, making future upgrades easy and free from limitations. For gamers, that means better thermals and quieter sessions. For builders, it’s a satisfying, intuitive workspace. And for everyone else, it’s a sleek chassis that blends visual appeal with serious functionality. The VELOX 300R delivers on all fronts, establishing itself as a case that truly understands the art of PC building.