Best open-air PC cases: PC with blue LEDs

Best open-air PC cases in 2024

Let your components breathe free with the best open-air PC cases.

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If you want to showcase your PC, an open-air PC case is the best choice. They offer superior airflow and thermals compared to regular PC cases. Yes, there’s the dust concern, but if that’s manageable for you, an open-air case delivers both optimal performance and aesthetics.

The best open-air PC cases often feature glass, excellent airflow, and highlight the build. Many support custom water-cooling and come with RGB and tempered glass. The market might not be flooded with open-air options, but there are standout models, whether you prefer flashy designs or minimalist ones centered on components.

If you’re in the market for an open-air case, you should also check out our list of the best RGB case fans to make your future build even more flashy. And if you want to achieve maximum flashiness, read our guide for the best RGB motherboards. You can finish your build with one of the best white graphics cards.

Thermaltake Core P3: Best value best open-air PC case

DRIVE BAYS
4× 3.5″
4× 2.5″
EXPANSION SLOTS
8
GPU CLEARANCE
280 mm
TOTAL FAN MOUNTS
6

Thermaltake’s Core series boasts some of the market’s leading open-air cases. They’re visually appealing, versatile in cooling, many can be wall-mounted, and all feature glass panels. A top pick for many is the Core P3.

The P3 is a mid-tower case balancing compactness with space, accommodating a 420mm radiator on the left. Without an AIO, it allows mounting of up to 3 120mm or 140mm case fans on the same side, enabling an RGB display. The design is also favorable for vertical GPU builds, ensuring ample airflow even close to the glass panel.

It provides space for up to five 2.5” drives or four 3.5” drives. While the case is user-friendly, perfect cable management in its open-air design demands time and precision.

XTIA Xproto: Best looking best open-air PC case

DRIVE BAYS
1× 3.5″
1× 2.5″
EXPANSION SLOTS
2
GPU CLEARANCE
330 mm
TOTAL FAN MOUNTS

The XTIA Xproto stands out as a minimalist open-air case, sculpted from two steel slabs that marry aesthetics with stability. Although it’s tailored exclusively for Mini-ITX systems, installation can be tricky, especially with the demanding cable management between the plates. However, when executed well, a build within the Xproto is undeniably striking. It boasts a GPU clearance of 330mm, or 315mm for RTX 3000 cards. To maintain its sleek appearance, a slim air cooler is recommended. The design allows for several SATA drives and hints at future RGB enhancements. Notably, when mounted vertically, cables protrude from the top—a design oversight on an otherwise impeccable case.

Cougar Conquer 2: Best full tower best open-air PC case

DRIVE BAYS
2× 3.5″
4× 2.5″
EXPANSION SLOTS
8
GPU CLEARANCE
400 mm
TOTAL FAN MOUNTS
6

The Cougar Conquer 2 stands out as one of the best RGB cases with an underlying open-air design. Though surrounded by metal and glass, its rear remains entirely open, making it a favorite for RGB enthusiasts.

Highlighted by its vibrant RGB “pipes” and an accompanying RGB fan, the case offers space for three additional 120mm fans or a 360mm radiator. Working within this enclosure is challenging due to its fixed exoshell. Instead, the entire system cage must be extracted for component installation—its primary drawback.

While its airflow and thermal performance are limited by the glass and metal coverage, there’s no concern of thermal throttling. Spec-wise, it supports up to four 2.5” drives or two 3.5”, has a 150mm CPU tower clearance (an AIO or custom loop is advised), and accommodates the large SSI-CEB motherboards.

Cooler Master MasterFrame 700: Best best open-air test bench PC case

DRIVE BAYS
7× 2.5″″
EXPANSION SLOTS
8
GPU CLEARANCE
450 mm
TOTAL FAN MOUNTS
6

The MasterFrame 700 from Cooler Master is a unique open-air case. Following their success with the NR200, they’ve introduced this adaptable design. It’s entirely open, with rotating front and back panels that can pivot over 180 degrees, allowing versatile placement. You can set it vertically or horizontally, transforming it into an open-air test bench.

The case is modular and offers ease in setup and cable management. It accommodates custom loops and the longest radiators. Plus, there’s a built-in VESA mount for wall-hanging and an optional tempered glass side panel. It’s among the most original and top open-air PC cases available.

InWin D-Frame Mini: Best Mini-ITX best open-air PC case

DRIVE BAYS
3× 3.5″/2.5″
2× 2.5″
EXPANSION SLOTS
2
GPU CLEARANCE
340 mm
TOTAL FAN MOUNTS
2

Last but not least is the best Mini-ITX open-air case, the InWin D-Frame Mini. While it may not surpass the Xproto in aesthetics, it’s more accessible and holds its own in design.

The chassis is solid, allowing for unrestricted airflow and protection. A glass side panel showcases the components. Its unique motherboard mount facilitates vertical GPU positioning, and it supports 120mm fans and 240mm AIO liquid coolers.

It can house up to five 2.5” drives or a mix of two 2.5” and three 3.5” drives. Notably, it’s compatible with both SFX and ATX power supplies. Its drawbacks include being a dust magnet and a relatively high price point.

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