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HGC Osmi 3.1 Aluminium Mini-ITX Case - Black
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Compact Mini-ITX case, console-like design, perfect for the living room
£179.99 £159.95 (incl. VAT)
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Cases & Modding

HYTE Y40 Mid-Tower ATX Case - White

Overclockers UK boasts one of the largest selections of PC cases in the UK, with an extensive range of sizes and styles. From full tower chassis to Mini-ITX, we have the perfect case for every setup. Notably, our selection includes specialised PC cases such as cube-shaped, noise-dampened, and even benchtables. What’s more, with options from industry leading brands including Kolink, Lian Li, HYTE, Corsair, and more, you’re certain to find the ideal PC case.

Case Form Factors

Full Tower

Full tower cases are specifically engineered to provide maximum support for larger components, such as E-ATX motherboards, and are capable of accommodating multiple radiators for water-cooling. This makes them an ideal choice for PC gamers who seek to utilise high-end components and custom water-cooling loops for both the processor and graphics card.

Lian Li Lancool 3.

HYTE Y60 Mid Tower PC case.

Mid Tower

Mid tower cases are a great all-rounder. They can accommodate complete water-cooling loops without the larger footprint of a full tower, whilst usually supporting an ATX motherboard. Because of this, they are usually the most popular choice. What’s more, these chassis often come equipped with large glass side panels and RGB fans at an affordable price.

Micro ATX, ITX, and NUC

Micro-ATX (M-ATX), is a smaller form factor than ATX, and can support up to two PCIe devices.

Mini-ITX (ITX) is the smallest, regular consumer motherboard available, and the matching cases make ideal LAN gaming PCs due to their small size and portability.

NUCs (Next Unit of Computing) often come in their own case, but we offer some solutions for restyling yours. These are tiny computers, fit for light home use.

Ssupd Meshlicious Mini ITX Case - Full Mesh - Black - PCIE 4.0


Cube PC cases are just that. Although sometimes these cases are more rectangular to allow for larger graphics cards. This type of case can often be compact in size to reduce their footprint on your desk. However, some cube PC cases are closer in size to a mid-tower and feature a dual chamber design, meaning unsightly cables and your PSU are tucked away, only displaying the spiciest parts.

Corsair Crystal 680X RGB High Airflow ATX Case - White Tempered Glass (CC-9011169-WW)

HTPC Case.


HTPC cases, short for Home Theatre PC cases, are a type of computer case specifically designed to be subtle and space-saving for use in your living room or home theatre. These cases are intended to blend in seamlessly with your décor with sleek and stylish designs.


Thanks to their sleek and lightweight designs, aluminium PC cases are a great choice for gamers. What’s more, aluminium PC cases benefit from improved heat dissipation, making them ideal for high-end PC hardware.

Zalman Z-Machine 300 Aluminium Mini-ITX Case - Silver Window

be quiet! Pure Base 500 Midi Tower Case - White

Noise Dampened

For gamers who need a super silent PC, noise dampened PC cases are a great choice. These chassis are specially designed to allow as little noise as possible to escape and are often equipped with silent case fans.


Designed for ease of access, benchtables are open air cases with no side panels making them ideal for testing hardware or even as a statement piece.

Streacom BC1 Mini Benchtable - Red

 CableMod PRO ModMesh C-Series RMi & RMx Cable Kit - Black/Burgundy (Black Label)

Accessories and Modding

Modding your case with accessories and upgrades is a great way to make your PC truly unique. From PCIe GPU risers for vertical mounting to RGB lighting strips, we stock a huge range of mods for PC cases.

Want to Read More?

Choosing your next gaming PC’s form factor is no easy task. In this dedicated guide on the Overclockers UK blog, we’ve explained everything you need to know before choosing your PC case form factor.

Read More

Cases and Modding FAQ

What is a PC case form factor?

PC case form factor refers to the size, shape, and layout of a computer case that determines its compatibility with different components and motherboards.

What PC case form factors do Overclockers UK sell?

Overclockers UK has an extensive range of PC cases, including ATX, Micro-ATX, Mini-ITX, Cube, and more!

What are the four types of computer cases?

The four most common types of computer cases are full-tower, mid-tower, mini-tower, and small form factor (SFF). However, within these categories, there are other types of PC case, such as cube and benchtable.

Can I mod my PC case?

Yes, you can definitely mod your PC case! In fact, case modding has become a popular hobby among PC enthusiasts. With options as simple as adding RGB strips to your case, all the way to adding screens and building your own case. Case modding is a great way to personalise your gaming setup. Overclockers UK has a huge range of modding components for your case. Before you unleash your creativity, just be aware the modding will most likely void your warranty..

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Overclockers UK not only offers next day delivery on thousands of products but also stocks exclusive brands from cutting-edge manufacturers including AMD, Intel, Asus, Gigabyte, Team Group and an ever-growing range of ultimate performance overclocked elite-tier hardware approved by 8 Pack.

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Whether you are after advice, product information or even aftersales support we are here for you. Overclockers UK offers unparalleled customer service which is available across multiple platforms including telephone, social media, email, webnotes, live chat, and even a dedicated section on Overclockers forum. We even offer a 3 year warranty on our own PC's.

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Overclockers UK are rated one of the top PC, hardware and peripheral retailers in the country. From premium products to a personal shopping experience. You can trust us to deliver an unbeatable 5-star service

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