- Home
- Products
- Power & Cooling
- Lian Li

Lian-Li Case O11D MINI -S Snow White 2x2.5 2x3.5 ATX/M-ATX/ITX
Want the best price and purchase timing?
Our AI advisor analyzes real-time pricing across all channels to find you the best deal.
AI Verdict
This is a compact aluminum and tempered glass mini tower for ATX, Micro-ATX, or Mini-ITX builds requiring an SFX/SFX-L power supply.
This case is a strong fit for users prioritizing a compact footprint and premium aesthetics without sacrificing compatibility for high-end components like ATX motherboards, large GPUs, and 360mm radiators. Its aluminum and tempered glass construction, combined with thoughtful build features, makes it ideal for showcase builds. The SFX/SFX-L PSU requirement is the main trade-off for its reduced size.
If the SFX/SFX-L PSU requirement or limited 3.5-inch drive bays are dealbreakers, look for a mid-tower case that supports standard ATX PSUs and offers more storage expansion.
Regret Score™
Very Low RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Accommodates ATX motherboards, large GPUs, and 360mm radiators in a compact footprint.
- Features a sturdy aluminum frame and tempered glass panels that fit smoothly with consistent gaps.
- Designed for easy building with removable fan trays and ample space for cable management.
- Includes a built-in vertical GPU mount, enhancing aesthetic appeal without extra purchases.
- Optimized airflow with a slanted fan layout contributes to quiet operation even under load.
- Front I/O panel is relocatable to the top for flexible desk setups.
Cons
- Requires an SFX or SFX-L power supply, which can limit options and increase cost compared to standard ATX PSUs.
- Offers only two 3.5-inch drive bays, restricting storage for users with multiple traditional hard drives.
- The compact size, while a benefit, means less internal working space during initial component installation compared to a full tower.
- Air cooling method, while effective, might not be sufficient for extreme overclocking without careful fan configuration.
Dimension Scores
The case is praised for its optimized airflow and ability to accommodate 360mm radiators and large GPUs, leading to effective cooling performance.
Users report the case allows for 'silent' operation even with a high-performance setup, indicating good noise dampening or fan placement options.
Constructed from aluminum and tempered glass, reviews consistently mention the case feels 'sturdy and well built' with 'smooth fitting panels' and 'consistent panel gaps'.
The design offers 'plenty of room for hidden accessories' and is described as 'really easy to build in thanks to the roomy layout and great cable management'.
Best For
- Compact, high-performance ATX builds with liquid cooling.
- Showcase builds where aesthetics and component visibility through tempered glass are priorities.
- Users needing a smaller footprint PC that still supports full-sized GPUs and motherboards.
- Enthusiasts who appreciate thoughtful design features like removable fan trays and flexible I/O.
Not Recommended For
- Budget-conscious builders who prefer using standard, more affordable ATX power supplies.
- Users requiring extensive internal storage with more than two 3.5-inch hard drives.
- First-time builders who might find working in a 'mini' form factor, even a well-designed one, slightly more challenging.
Watch Out For
- The requirement for an SFX/SFX-L power supply means you can't use a standard ATX PSU, potentially adding to your build cost and limiting PSU choices.
- You're limited to two 3.5-inch drives, so if your media server or storage-heavy build needs more, you'll need external solutions or higher-capacity SSDs.
- While it supports ATX motherboards, the 'mini' nature means less clearance around components than a full-sized ATX case, which can make cable routing or large air coolers a tight fit.
Full Specifications
| ASIN | B096JF2JT5 |
| Brand | Lian Li |
| Color | Snow White |
| Series | O11D MINI |
| Fan Size | 120 Millimeters |
| Material | Aluminum |
| Case Type | Mini-Tower |
| Model Name | O11D MINI |
| Item Weight | 2.2 pounds |
| Manufacturer | Lian Li |
| Cooling Method | Air |
| Item model number | O11D MINI-S |
| Product Dimensions | 25.2 x 25.2 x 7.6 inches |
| Item Dimensions LxWxH | 25.2 x 25.2 x 7.6 inches |
| Number of USB 2.0 Ports | 2 |
| Number of USB 3.0 Ports | 2 |
| Motherboard Compatability | ATX, Micro-ATX, Mini-ITX |
| Power Supply Mounting Type | Bottom Mount |
| Recommended Uses For Product | Game, Custom Modding |
What Buyers Say
What really stands out is how this 'mini' case manages to pack in support for full-sized ATX motherboards and massive 360mm radiators, which is pretty wild for its footprint. People are consistently stoked about the build quality, noting the smooth-fitting panels and overall sturdy feel. The integrated vertical GPU mount is a huge win for aesthetics, and builders love how easy it is to route cables and set up fans thanks to removable trays. The main catch is definitely the SFX/SFX-L PSU requirement, which can be a bit of a curveball for those expecting to use a standard ATX power supply.
“Dude, this case is gorgeous and building in it was actually a breeze, but seriously, remember you NEED an SFX power supply, almost forgot that and had to scramble!”
Common Praise
- Compact size that still fits ATX motherboards and large GPUs.
- High-quality aluminum and tempered glass construction with precise panel fitment.
- Excellent airflow and cooling potential, even for demanding components.
- Thoughtful design for easy building and effective cable management.
- Includes a built-in vertical GPU mount, saving extra purchases.
- Aesthetically pleasing, especially the Snow White finish, making for clean builds.
Common Complaints
- Requires an SFX/SFX-L power supply, limiting options and potentially increasing cost.
- Limited space for traditional 3.5-inch hard drives (only two bays).
- Working space can feel cramped during initial component installation compared to larger cases.
Ownership Tips
- The relocatable I/O panel is surprisingly useful for different desk setups, keeping cables tidy.
- The removable fan trays make cleaning dust filters and installing fans way less of a headache than other cases.
- Even with its 'mini' size, the thermal performance is legit, my components stay surprisingly cool under load.
- The tempered glass side and front panels really highlight your components, making RGB pop, but also show every speck of dust.
Frequently Asked Questions
What power supply unit (PSU) size does this case support?
This case specifically requires an SFX or SFX-L power supply unit. Standard ATX PSUs are not compatible with this chassis.
Can I fit a full-sized ATX motherboard in this 'mini' case?
Yes, despite its 'mini' designation, this case is compatible with ATX, Micro-ATX, and Mini-ITX motherboards.
How many hard drives can I install?
The case supports two 2.5-inch drives and two 3.5-inch drives.
Does this case come with fans?
The product specifications do not list included fans. Some specific 'Flow' versions might, but this model's description does not indicate pre-installed fans.
Is there good airflow for cooling high-performance components?
Yes, user reviews highlight its excellent ventilation and optimized airflow, including a slanted fan layout, which helps keep components cool and allows for silent operation.
Can I mount my GPU vertically?
Yes, the case includes a built-in vertical GPU mount, allowing you to showcase your graphics card.
Buying Guide
When picking a PC case, you're not just buying a box; you're getting the foundation for your entire build's cooling, aesthetics, and future upgrade path. For a case like this 'mini' one, you need to be extra mindful of component compatibility, especially the power supply, because smaller cases often have specific requirements. Think about how many fans you want, if you're going for liquid cooling, and how much storage you actually need, as these can be constrained by size.
Case Type (Mini Tower)
This tells you the physical size. A Mini Tower is smaller than a Mid or Full Tower, meaning it takes up less desk space but might have tighter internal clearances and specific component requirements, like the SFX/SFX-L power supply here.
Power Supply Size (SFX/SFX-L)
This is crucial because it dictates the type of power supply you must buy. SFX/SFX-L PSUs are physically smaller than standard ATX PSUs and can sometimes be more expensive or have fewer wattage options, so factor this into your budget and component selection.
Compatible Motherboards (ATX, Micro-ATX, Mini-ITX)
This indicates the range of motherboard sizes you can use. The ability to fit a full-sized ATX motherboard in a Mini Tower is a significant advantage, offering more expansion slots and features compared to cases limited to smaller Micro-ATX or Mini-ITX boards.
Material (Aluminum, Tempered Glass)
The materials affect durability, weight, and aesthetics. Aluminum provides a premium feel and lighter weight, while tempered glass offers a clear view of your internal components, which is great for showing off your build but also means fingerprints and dust will be more visible.
Alternatives
If you need more traditional ATX PSU support and extensive 3.5-inch drive bays, search for a mid-tower case with standard ATX PSU compatibility and a higher number of internal 3.5-inch drive slots.



