10 Best Horizontal PC Cases in 2025 (ATX, mATX & ITX)

Looking for a PC case that breaks the mold? Horizontal, or “desktop-style,” cases are making a major comeback in 2025. This form factor offers a distinct aesthetic, saving valuable floor space and providing a stable, low-profile foundation for your components. Whether you’re building a powerful home theater PC (HTPC) that blends into your entertainment center or a unique gaming rig that stands out from the typical tower, a horizontal case is a fantastic choice.

The key is finding the right model for your motherboard and performance needs. From compact Mini-ITX solutions to full-size ATX behemoths, the options are more varied than ever. This roundup cuts through the noise to present the best horizontal PC cases available, helping you select the perfect foundation for your next build.

The Best Horizontal PC Cases for Your Build

  1. SilverStone Technology Mini-DTX, Mini-ITX Small Form Factor Computer Case SG13WB
  2. ASUS ROG Z11 Mini-ITX/DTX Gaming Case with Patented 11° Tilt Design
  3. SilverStone Technology GD09 Home Theater PC (HTPC) Computer Case
  4. SilverStone Technology Mini-ITX Slim Small Form Factor Computer Case with Handle ML08B-H
  5. Fractal Design Node 804 No Power Supply MicroATX Cube Case
  6. SilverStone Technology Grandia Series Aluminum HTPC Computer Case
  7. Cooler Master HAF 700 EVO E-ATX High Airflow PC Case
  8. Thermaltake Core V1 Snow Edition SPCC Mini ITX Cube Computer Chassis
  9. JONSBO D41 MESH SC Black ATX Computer Case with Screen
  10. Thermaltake Core G3 Slim ATX Horizontal Case

SilverStone Technology Mini-DTX, Mini-ITX Small Form Factor Computer Case SG13WB

SilverStone SG13WB Computer Case

The SilverStone SG13WB proves that big performance can come in a small, horizontal package. Its compact footprint makes it an ideal candidate for a minimalist desktop setup or a living room HTPC. Despite its size, it maintains impressive compatibility, a key feature for builders working within spatial constraints.

This case supports standard-length expansion cards up to 10.5 inches, allowing for a powerful graphics card. It is also compatible with standard ATX power supplies, which provides flexibility and can save on component costs. For cooling, it accommodates a 120mm or 140mm single-fan All-in-One Liquid Cooler, offering an effective thermal solution for the CPU in a confined space.

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ASUS ROG Z11 Mini-ITX/DTX Gaming Case

ASUS ROG Z11 Gaming Case

The ASUS ROG Z11 is a premium horizontal case designed for gamers who want a distinctive and performance-oriented build. Its patented 11-degree tilt is not just for looks; it serves a functional purpose by improving system thermals and creating extra room for cable management behind the motherboard. This thoughtful design sets it apart from conventional cases.

Featuring 4mm tempered-glass panels set in a sleek aluminum frame, the Z11 offers a high-end aesthetic. It includes Aura Sync lighting for customizable RGB effects. The case supports Mini-ITX and DTX motherboards and is compatible with ATX power supplies and 3-slot graphics cards, providing a balance of form and function for a high-performance small form factor system.

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SilverStone Technology GD09 Home Theater PC (HTPC) Computer Case

SilverStone GD09 HTPC Case

The SilverStone GD09 is purpose-built for the living room, featuring a low-profile design that fits perfectly in an AV rack alongside other home theater components. Its faux aluminum finish presents a clean, professional look that complements entertainment centers. This case prioritizes quiet, efficient operation for a media center that is both seen and heard.

Engineered with a positive air pressure design, the GD09 promotes excellent cooling while minimizing dust intake and operating noise. It offers broad motherboard support for SSI-CEB, ATX, and Micro-ATX form factors, providing flexibility for various build types. An added benefit is its support for SilverStone RA02 rackmount ears, making it suitable for professional installations.

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SilverStone Technology Mini-ITX Slim Small Form Factor Computer Case with Handle ML08B-H

SilverStone ML08B-H Computer Case

The SilverStone ML08B-H combines a super-slim horizontal profile with a high degree of portability, thanks to its removable carrying handle. This design is perfect for LAN party enthusiasts or anyone who needs to transport their PC occasionally. It achieves a very compact footprint without making significant compromises on internal hardware.

Remarkably, this slim case supports graphics cards up to 13 inches in length, accommodating many high-performance models. It is designed to deliver strong performance in a minimal amount of space, making it a top choice for a powerful, transportable gaming or workstation PC that can be easily moved from one location to another.

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Fractal Design Node 804 MicroATX Cube Case

Fractal Design Node 804 Case

The Fractal Design Node 804 is a cube-style case with a horizontal orientation that excels in storage and cooling capabilities. Its dual-chamber layout effectively separates the motherboard and power supply areas, which improves airflow and makes for a cleaner build. This case is an excellent fit for users who need a compact system with extensive storage options.

It offers exceptional storage flexibility, supporting up to ten 3.5-inch hard drives and multiple 2.5-inch SSDs. This makes it a prime candidate for a network-attached storage (NAS) server or a workstation requiring vast amounts of data. The thoughtful internal design provides ample room for cooling components, supporting a versatile range of air and liquid cooling setups.

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SilverStone Technology Grandia Series Aluminum HTPC Computer Case

SilverStone Grandia Series Case

The SilverStone GD09B from the Grandia series is a robust HTPC case crafted from aluminum, offering a blend of durability and refined aesthetics. Its design is focused on integrating seamlessly into a home theater environment, providing a look that is both sophisticated and understated. It is built to house powerful components quietly and efficiently.

Like its sibling, this case utilizes a positive air pressure design to maintain excellent cooling performance and reduce dust accumulation. It supports full-size ATX motherboards, allowing for a wide range of component choices. With room for expansion cards up to 12.2 inches, it can handle a capable graphics card for a high-end media or gaming center.

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Cooler Master HAF 700 EVO E-ATX High Airflow PC Case

Cooler Master HAF 700 EVO Case

The Cooler Master HAF 700 EVO is a flagship horizontal case that represents the pinnacle of the High Air Flow (HAF) legacy. It is engineered for enthusiasts who demand maximum performance, extensive cooling potential, and a high degree of customization. This case is designed to handle the most powerful hardware available, including E-ATX motherboards.

It features a breathable tempered glass front panel and comes equipped with massive 200mm Sickleflow fans to move a tremendous amount of air. A standout feature is the IRIS customizable LCD screen on the front, which can display system stats or custom graphics. With a front-panel USB 3.2 Gen 2 Type-C port, it is prepared for the latest peripherals.

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Thermaltake Core V1 Snow Edition Mini ITX Cube Chassis

Thermaltake Core V1 Snow Edition Case

The Thermaltake Core V1 Snow Edition is a compact cube case with a horizontal layout, finished in a clean white color. Its dual modular rack design separates the main chamber for cooling and components from the lower chamber for the power supply and cables. This promotes better airflow and simplifies the building process.

Cooling is a strong suit for the Core V1, which includes a large 200mm front fan as standard. It offers extensive configuration options for both air and liquid cooling systems, thanks to its removable drive racks that free up interior space. This flexibility makes it a great foundation for a high-performance Mini-ITX build with excellent thermal management.

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JONSBO D41 MESH SC Black ATX Computer Case with Screen

JONSBO D41 MESH SC Computer Case

The JONSBO D41 MESH SC is a modern mid-tower case with a horizontal desktop orientation that incorporates a unique built-in LCD display. Its all-metal construction and mesh front panel prioritize effective ventilation and heat dissipation. The integrated screen adds a new dimension of functionality and customization to the desktop.

The 16:10 ratio HD LCD display can show system information, custom images, or videos, serving as a useful monitoring tool or a personal aesthetic touch. Despite its compact size for an ATX case, it supports large components, including GPUs up to 335-400mm and 360/280mm AIO liquid coolers, making it a versatile and feature-rich option.

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Thermaltake Core G3 Slim ATX Horizontal Case

The Thermaltake Core G3 is designed for builders who want the component compatibility of a full ATX motherboard in a remarkably slim, horizontal form factor. Its low-profile design is ideal for placing on a desk or fitting into a tight entertainment center shelf, offering a substantial reduction in height compared to standard ATX towers.

This case focuses on achieving a sleek look without sacrificing core functionality. It provides the necessary space to build a powerful system with standard ATX components while maintaining a minimal visual presence. The Core G3 is a compelling solution for creating a high-performance, space-efficient PC that stands out through its elegant, low-slung profile.

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Buying Guide: How to Choose the Best Horizontal PC Case

When I’m looking for a new horizontal PC case, the first thing I consider is motherboard compatibility. This is the most critical factor because it dictates the size of your entire build. You’ll find cases that support the compact ITX form factor, the popular micro-ATX (mATX) size, and even full-sized ATX motherboards. An ITX case is perfect for a sleek, minimalist home theater PC (HTPC), while an ATX case gives you the most room for expansion. Make sure you know your motherboard’s size before you start shopping.

Next up is cooling performance. Horizontal cases, by their very nature, have a different thermal dynamic than traditional towers. Hot air naturally wants to rise, and in a horizontal layout, your components are all on the same plane. I always look for cases with good ventilation on the top panel, as this is crucial for heat to escape. Options for fan mounts are also key. Some cases support large top-mounted radiators for liquid cooling, which can be a very effective solution for keeping your CPU and GPU temperatures in check in a confined space.

Build quality and materials are another big one for me. A well-built case feels solid, doesn’t have sharp edges, and will last for years. I prefer cases with a steel or aluminum chassis. The finish matters too; a brushed aluminum look can be fantastic for a living room setup, while a more subdued black steel might be better for a professional environment. Don’t forget to check what’s included. Many cases come with pre-installed fans, which is a nice bonus that saves you a bit of money and gets your airflow started right away.

Finally, think about your connectivity and drive bay needs. Since many of these cases will live under a TV or in an entertainment center, easy front-panel access is a huge plus. Look for cases with USB ports, especially the faster USB-C, and audio jacks on a front or side panel. Also, consider your storage. If you’re planning on using multiple 3.5-inch hard drives, you need to verify the case has the internal mounting points for them. Many modern cases are shifting focus to SSD mounts, so double-check the specifications to ensure it fits your storage configuration. Keeping these factors in mind will help you find one of the best horizontal PC cases in 2025 for your ATX, mATX, or ITX build.

Frequently Asked Questions

Are horizontal PC cases good for gaming?

Yes, they can be! The performance of your gaming PC isn’t determined by the case’s orientation but by the components inside and how well they are cooled. Many horizontal cases are designed with excellent airflow, support for large graphics cards, and options for liquid cooling radiators. The key is to choose a model with a robust cooling design—good ventilation and fan support—to ensure your high-end CPU and GPU don’t overheat. For a living room gaming setup connected to a TV, a horizontal case is often the most aesthetically pleasing and practical choice.

What is the main advantage of using a horizontal case?

The biggest advantage, in my opinion, is the form factor. A horizontal case is designed to sit like a piece of audio/video equipment, making it ideal for a home theater PC (HTPC) setup or for a desk where you want to use the top of the case as a surface for a monitor or other peripherals. It has a much lower profile than a tower, which helps it blend into your entertainment center seamlessly. This design often makes it easier to access the internal components from the top when you need to perform upgrades or maintenance.

Do horizontal cases have worse airflow than tower cases?

They can have different thermal challenges, but it’s not necessarily worse if the case is designed correctly. In a tower, heat rises and can be efficiently exhausted out the top. In a horizontal layout, case designers have to be more intentional about creating a direct airflow path, often from the side or front to the top and rear. Many modern horizontal cases tackle this brilliantly with mesh panels and strategic fan placements. It’s crucial to look at reviews that test thermals for the specific model you’re interested in.

Can I fit a large graphics card in a horizontal PC case?

This really depends on the specific case. While some compact ITX horizontal cases have very strict limitations, many micro-ATX and ATX horizontal cases are quite spacious and can accommodate even the longest triple-fan graphics cards on the market. You must check the manufacturer’s specifications for the maximum GPU length clearance. This is one of the most important specs to verify before purchasing, especially if you already own a large card or are planning to buy a high-end model.

What should I look for in a horizontal case for a home theater?

For a home theater role, my priorities shift. I look for a case that is quiet, so fan noise doesn’t interrupt movies. A sleek, minimalist design that looks like a standard AV component is a major plus. Front-panel connectivity, including USB ports for easy access, is very useful. You also want to ensure it has the right physical dimensions to fit in your media console. Finally, consider features like an IR receiver for a remote control, which can enhance the true HTPC experience. Finding the right balance of these features is key to selecting from the list of the best horizontal PC cases in 2025 for your ATX, mATX, or ITX home theater system.

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