Top 10 Best Horizontal Desktop Computer Cases in 2025

In today’s evolving PC market, more users are turning to horizontal desktop computer cases for their sleek design, space-saving layout, and flexibility in compact or home theater setups. Unlike traditional tower cases, a horizontal PC case sits flat, often resembling classic media players or consoles—making it a perfect match for minimalist desks or entertainment centers.

Whether you’re building a powerful HTPC (Home Theater PC), a flat desktop gaming rig, or just need a low-profile desktop PC case that fits under a TV or shelf, choosing the right case is critical. The best horizontal PC cases offer:

Superior airflow in compact spaces,
Support for full-size GPUs, and
Noise-reducing design for living rooms or workstations.

In this guide, we’ve carefully selected the 10 best horizontal PC cases that combine smart design, cooling capability, and build quality. These include horizontal form factor PC cases, mini horizontal desktop cases, and even flat desktop chassis designed for flexibility and performance.

We’ve also included a complete buying guide, covering everything from GPU clearance to airflow layout. Whether you’re a builder, a gamer, or a minimalist enthusiast, this article has the horizontal desktop case for your needs.

If you’re also looking to pair your setup with affordable computer desks, we’ve got you covered.

Table of Contents

1. SilverStone ML04B Horizontal Desktop Computer Case (Slim HTPC Design)

If you’re building a sleek and compact home theater system or a low-profile workstation, the SilverStone ML04B horizontal desktop computer case is an exceptional choice. This case is part of SilverStone’s renowned Grandia series and is purpose-built for horizontal HTPC case applications.

Its compact design—measuring just 105mm in height and 350mm in depth—makes it ideal for use in entertainment centers or shallow desks. Despite its slim profile, this low-profile desktop PC case supports up to four 3.5″ or 2.5″ drives, giving you plenty of room for storage expansion.

The case includes a lockable front panel and power button, a great feature for keeping your components secure in public or family areas. Tool-less drive cages ensure quick and easy installation without the need for extra hardware. It also supports Micro-ATX motherboards, allowing for a variety of powerful configurations in a horizontal form factor PC case.

Designed with airflow in mind, the ML04B features strategically placed vents to maintain efficient cooling, even in compact spaces. Whether you’re setting up a silent media PC or a modest gaming rig, this flat desktop computer case delivers both functionality and elegance.

🔧 Key Features:

Compatible with Micro-ATX motherboards
105mm height & 350mm depth — fits compact shelves
Tool-free internal drive cages (up to 4 drives)
Lockable power button and front door
Ideal for HTPC and media-focused builds

✅ Pros:

Ultra-slim, space-saving layout
Secure locking features
High storage capacity for compact form
Excellent build quality

❌ Cons:

Requires low-profile CPU cooler due to limited clearance

Want to double-check fit? Use tools like PCPartPicker to ensure your motherboard and GPU will work with your case.

2. Cooler Master HAF XB EVO Horizontal PC Case (Modular Test Bench Design)

The Cooler Master HAF XB EVO is a top-tier horizontal PC case for gaming and test bench enthusiasts. It blends high airflow capability with modular convenience, making it ideal for overclockers, DIY builders, and anyone who frequently swaps components.

Unlike traditional tower cases, this flat desktop computer case allows for a completely open top and removable motherboard tray. It supports full-length GPUs up to 334mm and tall CPU coolers up to 180mm. The front panel accommodates dual 120mm fans or a 240mm radiator—perfect for both air and liquid cooling systems.

The dual-chamber layout ensures clean cable management while optimizing thermal performance. With rugged handles and a durable steel frame, this horizontal form factor PC case also doubles as a LAN-ready travel chassis.

🔧 Key Features:

Supports 334mm GPU & 180mm CPU cooler
Removable motherboard tray for easy upgrades
Front 240mm radiator support
Stackable, dual-chamber design
Excellent for gaming and testing builds

✅ Pros:

Extremely modular and easy to work with
High airflow design
Ideal for test bench or LAN setups
Strong and durable structure

❌ Cons:

Larger footprint than other horizontal desktop cases

3. InWin FH300TB3 Slim Horizontal Desktop PC Case

Compact and practical, the InWin FH300TB3 is a mini horizontal desktop case perfect for office setups, home users, or anyone looking for an unobtrusive chassis. It supports both vertical and horizontal orientations, giving you flexible placement options.

This low-profile desktop PC case includes a built-in 90mm cooling fan and an innovative airflow design with ventilation on the bottom and side panels. These features allow efficient heat dissipation even in tight spaces, maintaining long-term performance.

Its tool-free design includes one-touch PCIe slots and a unique HDD/fan bracket combo for fast system assembly and maintenance. With support for both USB 2.0 and USB 3.0, this compact horizontal computer case is modern, efficient, and well-suited for light to moderate computing tasks.

🔧 Key Features:

Horizontal or vertical configuration
Tool-less PCIe slot & HDD bracket
Built-in 90mm cooling fan
USB 2.0 & USB 3.0 front panel ports
Compact form with efficient airflow

✅ Pros:

Very compact and space-saving
Tool-free installation and upgrades
Excellent heat dissipation for its size
Quiet and minimalist design

❌ Cons:

Limited space for large GPUs or advanced cooling

4. SilverStone GD10B Horizontal HTPC Case

Engineered for home entertainment systems, the SilverStone GD10B is a stylish and durable horizontal HTPC case with superior airflow and security features. It’s part of SilverStone’s Grandia series and offers everything you’d expect from a premium media-focused chassis.

Designed with a positive air pressure cooling system, it effectively reduces dust buildup while keeping components cool and quiet. The lockable front panel protects your drives and controls, making it an excellent option for living room setups.

It supports GPUs up to 12.2 inches and has easily accessible filters to simplify maintenance. With a 362mm depth, it fits comfortably inside most media cabinets while supporting Micro-ATX motherboards and multiple drive configurations.

🔧 Key Features:

Lockable front panel and dust filters
Positive air pressure cooling system
Supports 12.2” graphics cards
Tool-free drive cage installation
Perfect for home theater builds

✅ Pros:

Superb for HTPC and media use
Quiet operation and great airflow
Secure front panel for added safety
Easy to clean and maintain

❌ Cons:

Slightly bulky for ultra-slim media centers

5. SilverStone SG11B Mini Horizontal PC Case

Compact yet capable, the SilverStone SG11B is a versatile horizontal desktop case built for small-form-factor enthusiasts who don’t want to sacrifice performance. Based on the classic SG01 design, it offers a clean aesthetic with strong internal compatibility.

It supports standard ATX PSUs, full-length graphics cards, and Micro-ATX motherboards. This makes it a great pick for anyone building a flat desktop computer case with high-end components in a compact space.

The case includes a quiet 120mm fan that spins at 1200 RPM for consistent airflow. Its internal layout is optimized for efficient cooling and simple cable management. Whether you’re setting up a workstation or a compact gaming PC, this horizontal form factor PC case is built to deliver.

🔧 Key Features:

Supports full-sized GPUs and ATX PSUs
Micro-ATX motherboard compatible
Pre-installed 120mm fan (1200 RPM)
Based on classic Sugo SG01 design
Ideal for compact power builds

✅ Pros:

Surprisingly spacious for a small case
Clean, professional appearance
Great airflow and cooling
Durable steel construction

❌ Cons:

Sharp internal edges (wear gloves during build)

6. Antec VSK2000-U3 Horizontal Slim Desktop Case

If you’re looking for a basic but reliable horizontal desktop case, the Antec VSK2000-U3 delivers solid performance in a compact form. Designed with system integrators in mind, this low-profile desktop PC case offers simplicity, durability, and convenience at an affordable price.

It supports both Micro-ATX and Mini-ITX motherboards and includes bays for ODD and HDD drives. The tool-less setup ensures fast installations, while the case’s small footprint makes it great for desks, classrooms, or offices.

With a GPU clearance of 200mm and a vertical stand included for upright positioning, the VSK2000-U3 is versatile without unnecessary bulk. It’s a smart pick for users looking for a compact horizontal computer case that gets the job done.

🔧 Key Features:

Supports Micro-ATX & Mini-ITX motherboards
200mm GPU clearance
Tool-free drive installation
Includes vertical stand
Space-efficient chassis layout

✅ Pros:

Very affordable
Compact and efficient layout
Quick to assemble
Great for office and education use

❌ Cons:

Limited airflow options for gaming setups

7. SilverStone SG13WB Mini-ITX Horizontal Computer Case (White/Black)

The SilverStone SG13WB is one of the most popular mini horizontal desktop cases for users who need compact builds without sacrificing GPU support. With a small 11.5-liter internal volume, this case is ideal for minimalist desktops, HTPCs, or space-saving gaming rigs.

Despite its size, the SG13WB accommodates full-length graphics cards (up to 10.5″), ATX power supplies, and 120mm or 140mm liquid cooling radiators—making it one of the most powerful low-profile desktop PC cases on the market.

The SG13WB comes in white, black, and pink colors and offers two front panel variations: solid or mesh. The mesh version enhances airflow, especially useful for gaming or media-heavy workloads. Additionally, some variants offer a USB Type-C front port for modern connectivity.

🔧 Key Features:

11.5L ultra-compact volume
Supports full-sized GPU and ATX PSU
Front panel with mesh or solid options
Optional USB Type-C front I/O
Compatible with Mini-ITX motherboards

✅ Pros:

Compact yet highly capable
Great cooling support for small builds
Stylish color and panel choices
Ideal for HTPC and minimalist builds

❌ Cons:

Tight cable management space

8. Fractal Design Node 202 Mini-ITX Horizontal PC Case

Sleek and modern, the Fractal Node 202 is a favorite among builders seeking a console-style horizontal form factor PC case. It blends elegance with efficient component support, making it ideal for living rooms, offices, or modern workspaces.

At just 10.2 liters, this flat desktop computer case supports graphics cards up to 310mm and separates the GPU and motherboard into independent thermal chambers for optimized airflow. It also comes with dual dust filters and can be oriented horizontally or vertically.

The Node 202 is compatible with SFX power supplies and features a minimalist black exterior that fits beautifully in any environment. Whether you’re assembling a compact gaming setup or a media hub, this horizontal desktop case delivers style and functionality.

🔧 Key Features:

10.2L slim design
Supports 310mm GPUs
Dual-chamber thermal layout
Vertical or horizontal positioning
Integrated dust filters

✅ Pros:

Very stylish and minimal
Great airflow for small form factor
Versatile orientation
Excellent for gaming or HTPC builds

❌ Cons:

Only supports SFX power supplies

9. SilverStone CS381B Hot-Swap NAS Horizontal Desktop Case

The SilverStone CS381B is a powerful horizontal desktop computer case designed for NAS and server-style builds. With support for up to 12 drives and hot-swap capabilities, it’s ideal for file storage, virtualization, or enterprise-grade home setups.

This horizontal PC chassis features a Micro-ATX layout and a large 30-liter volume, offering extensive compatibility with cooling systems and storage configurations. It supports both SFX and SFX-L power supplies and features dual orientation—vertical or horizontal—to fit your workspace.

Its lockable front panel with Kensington support adds an extra layer of security, while its sturdy steel body ensures durability for long-term use.

🔧 Key Features:

Supports up to 12 drives
Hot-swap compatible front bays
30-liter Micro-ATX chassis
Dual orientation (horizontal/vertical)
Kensington lock support

✅ Pros:

Ideal for NAS and storage builds
Extremely durable and secure
Excellent airflow and storage flexibility
Long-lasting build quality

❌ Cons:

Higher price point
Short PSU cable clearance

10. Thermaltake Core P5 Black Edition Horizontal Modular Case

For those building a showcase system, the Thermaltake Core P5 Black Edition offers a panoramic open-frame design that makes it one of the most customizable horizontal desktop computer cases available. It supports wall, vertical, and horizontal mounting and is designed to display your hardware in full view.

The tempered glass side panel allows you to present every component with clarity. GPU mounting is flexible, with vertical placement supported using a riser cable. The open layout supports both air and liquid cooling setups and is ideal for custom loop configurations.

If you’re looking for a horizontal PC case for gaming or enthusiast builds, the Core P5 gives you the freedom to create a system that’s as functional as it is visually impressive.

🔧 Key Features:

Three-way mount: horizontal, vertical, or wall
Open-frame tempered glass design
Vertical GPU mount support
Compatible with liquid cooling setups
Modular component configuration

✅ Pros:

Ideal for modders and enthusiasts
Excellent cooling and visibility
Supports large components and radiators
Highly customizable design

❌ Cons:

Exposed design requires regular dusting

🛒 Buying Guide: How to Choose the Best Horizontal Desktop Computer Case

Choosing the best horizontal desktop computer case goes beyond looks—it’s about airflow, component compatibility, and long-term performance. Whether you’re setting up a compact horizontal computer case for a home theater PC or building a flat gaming rig, here are the key factors to consider:

✅ 1. Form Factor Compatibility

The first thing to check is whether the case supports your motherboard size. Most horizontal form factor PC cases support:

Mini-ITX – Perfect for ultra-compact builds
Micro-ATX – Balances space and expandability
ATX (rare in horizontal cases) – Found in modular and open-frame layouts

Always verify motherboard compatibility before purchasing.

✅ 2. GPU & CPU Cooler Clearance

If you plan to install a high-end GPU or large air cooler, make sure your flat desktop computer case supports them. Look for:

GPU length clearance (200mm–350mm)
CPU cooler height (some horizontal cases require low-profile coolers)
Vertical or riser-supported GPU mounting options

✅ 3. Airflow & Cooling Support

Horizontal cases can trap heat more easily than towers. To ensure proper airflow:

Opt for mesh or ventilated front/top panels
Choose cases with pre-installed fans or space for additional ones
For high-performance setups, pick models that support liquid cooling (e.g., 120mm or 240mm radiators)

✅ 4. Drive & Expansion Support

Some users need lots of storage for video editing, media libraries, or backups. Look for:

Multiple 2.5″/3.5″ SSD/HDD bays
Hot-swap options (common in NAS-style cases)
Support for ODD (optical drives) if needed

✅ 5. Design & Orientation

Depending on your setup, you may prefer a:

Mini horizontal desktop case (great for limited spaces)
HTPC-style horizontal case (ideal under a TV)
Modular or open-frame chassis (for showpiece gaming rigs)

Cases that allow both horizontal and vertical mounting offer greater flexibility for tight or unconventional spaces.

✅ 6. Front I/O and Connectivity

Modern cases should include:

USB 3.0 or USB-C ports
Audio jacks
Easily accessible power/reset buttons

If you plan on using it frequently in a living room, consider a horizontal desktop case with a lockable front panel for added security.

🏁 Conclusion: The Best Horizontal Desktop Case for Your Build

Whether you’re building an HTPC, a compact gaming system, or a quiet home office workstation, selecting the right horizontal desktop computer case is key to balancing performance, space, and aesthetics.

For HTPC or entertainment centers, the SilverStone ML04B stands out with its lockable front panel and slim profile.
For gamers or hardware enthusiasts, the Thermaltake Core P5 offers unmatched visibility and modular design.
Need a NAS or server-grade solution? The SilverStone CS381B provides hot-swap support and dual-orientation flexibility.

Each of the models in our list supports different use cases—from mini horizontal desktop cases for space-saving setups to horizontal PC cases for gaming with full-size GPU support. No matter your build style or component list, there’s a compact horizontal computer case on this list that’s just right for your next project.