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The Three Hummingbird Portable is a mini-ITX chassis crafted from tinned steel plate, offering a durable and space-efficient home for high-performance small-form-factor PC components. With a focused design for ITX motherboards and an upper-mounted power supply bay, it simplifies building a powerful system that occupies minimal desk space. Available in titanium grey and white, and in bundles with essential accessories like GPU riser cables and a 500W power supply, it provides a versatile foundation for creating a sleek, modern desktop computer.
This section details the specific design choices, materials, and construction techniques that define the Three Hummingbird Portable chassis, from its robust steel shell to its thoughtful internal layout.
From dedicated workstations to elegant home entertainment centres, the Three Hummingbird Portable's small size and robust build suit various computing needs. Its design is ideal for users who prioritise performance without sacrificing desk space.
Selecting this chassis brings specific advantages related to space saving, build simplicity, and long-term usability, making it a considered choice for your next PC project.










Three Hummingbird Portable ITX Mini Desktop Computer Chassis with Multiple Colour and Configuration Options for Compact PC Builds
£242.98
Sale price
£242.98
Regular price
Three Hummingbird Portable ITX Mini Desktop Chassis: A Compact 12.6-Litre Steel Enclosure

Features and Build Quality of the ITX Chassis

Compact Steel Chassis Design
The chassis utilises a tinned steel plate construction, forming a rigid enclosure with a total volume of 12.6 litres. This material choice ensures the case can securely protect an ITX motherboard, graphics card, and other components while providing inherent shielding. The compact dimensions are a direct result of its exclusive compatibility with the ITX form factor, eliminating wasted space and creating a footprint that fits neatly on a desk or shelf.Internal Layout and Compatibility
A key technical aspect is the upper positioning of the power supply. This layout helps separate the PSU's heat from the main CPU and GPU area, potentially aiding overall thermal management within the confined 12.6-litre space. The design mandates the use of an ITX motherboard, ensuring all mounting points and rear I/O cutouts align perfectly. The available configurations with video card extension cables are crucial for fitting certain full-length graphics cards into the compact frame.Durable Construction and Finish
The quality of the chassis stems from its tinned steel plate, which is resistant to rust and provides a stable base for component mounting. Weighing 5.5 kg, the chassis has a substantial feel that prevents sliding or tipping on a desk. The two finish options—titanium grey and white—offer a choice between a subdued, professional look and a brighter, contemporary aesthetic, both applied to the durable steel surface.Applications for the Mini-ITX Chassis

Professional and Creative Workspace Use
For professionals such as software developers, graphic designers, or audio engineers, the chassis allows for a powerful workstation with a minimal physical footprint. Housing an ITX motherboard with a high-core-count CPU and ample RAM, the system can handle compiling code, rendering video, or running digital audio workstations, all while keeping the desk tidy and organised. The steel construction also helps dampen minor vibrations from cooling fans.Everyday Computing and Home Entertainment
In a living room or home office, the chassis's compact form and clean finishes—whether the muted titanium grey or crisp white—allow it to blend into modern décor. The feeling of building a system that is both powerful and discreet is a key benefit. You can assemble a capable machine for everyday tasks, media streaming, or casual gaming, knowing the 5.5 kg steel case provides a stable and protective shell that feels solid to the touch.Versatility in System Configuration
The range of available SKUs significantly extends the chassis's versatility. You can purchase the basic steel enclosure or opt for a kit that includes a video card extension cable, which is often necessary for fitting modern GPUs. The bundles that include an FX500 bronze 500W power supply offer a convenient one-stop solution, ensuring compatibility and saving the research time needed to source a suitably sized and rated PSU for the build.Benefits of Choosing the Three Hummingbird

Long-Term Value and Space Efficiency
The primary value proposition is the enduring utility of a well-built, compact steel case. Unlike larger towers that can become obsolete in style or function, a quality mini-ITX chassis like this remains relevant for future upgrades, as the ITX standard is firmly established. The 12.6-litre size permanently reclaims desk or floor space compared to a standard ATX mid-tower, which can be over 40 litres—a direct, measurable saving on physical footprint.User Satisfaction and Build Experience
Assembling a PC in this chassis provides a specific satisfaction derived from fitting powerful components into a neat, efficient package. The confidence during the build comes from the precise ITX motherboard compatibility and the rigid steel frame that doesn't flex during installation. The peace of mind afterwards is supported by the robust 5.5 kg construction and the protective nature of the steel enclosure, which safeguards your investment in internal hardware.Making the Decision to Build Compact
If your goal is to build a high-performance PC without letting it dominate your workspace, the Three Hummingbird Portable provides a proven solution. The specific benefit is a reduction in clutter and bulk, achieved by the exact 12.6-litre volume and ITX-only design. Choosing a bundle with the included 500W power supply and GPU riser cable can further streamline the process, delivering a complete foundation for a compact system that is ready for your chosen ITX motherboard, processor, and memory.









