HAVN HS 420 Dual-Chamber ATX Mid Tower PC Case Black Hybrid Design vs Lian Li A3 mATX PC Case
Updated August 2026 — The HAVN HS 420 excels in cooling performance and customisation, making it ideal for high-end builds, while the Lian Li A3 offers a stylish and compact option for budget-conscious users.
The HAVN HS 420 excels in cooling performance and customisation, making it ideal for high-end builds, while the Lian Li A3 offers a stylish and compact option for budget-conscious users.
Why HAVN HS 420 Dual-Chamber ATX Mid Tower PC Case Black Hybrid Design is better
Cooling Capacity
Supports up to eleven 140mm fans and three 420mm radiators.
Customisation
Features a 3-way adjustable GPU bracket for flexibility.
Cable Management
Includes a SimpliCable system for neat routing.
Why Lian Li A3 mATX PC Case is better
Price
More affordable at £69.95.
Compact Size
Ideal for smaller setups with a 26.3L volume.
Aesthetic Design
Stylish wood and mesh front panel.
Overall score
Specifications
| Spec | HAVN HS 420 Dual-Chamber ATX Mid Tower PC Case Black Hybrid Design | Lian Li A3 mATX PC Case |
|---|---|---|
| Brand | HAVN | Lian Li |
| Current Price | £199.99 | £69.95 |
| Fan Support | 11 x 140mm | Standard |
| Radiator Support | 3 x 420mm | Limited |
| Cable Management | Excellent | Good |
Dimension comparison
Overview of the HAVN HS 420 and Lian Li A3
The HAVN HS 420 is a premium mid-tower PC case priced at £199.99, while the Lian Li A3 is a compact mATX option available for £69.95. The significant price difference reflects their target audiences and design philosophies. The HAVN HS 420 focuses on extensive cooling capabilities and customisation, suitable for high-performance builds. In contrast, the Lian Li A3 is designed for those seeking a stylish yet functional case in a smaller form factor.
Cooling Performance
When it comes to cooling performance, the HAVN HS 420 stands out with the capacity to support up to eleven 140mm fans and three 420mm radiators. This extensive cooling potential is particularly beneficial for users planning complex water cooling setups. On the other hand, the Lian Li A3 incorporates a stylish wood and mesh front design that facilitates airflow. However, it does not offer the same level of cooling versatility as the HAVN HS 420, making it less suitable for extreme performance builds.
Design Aesthetics
The HAVN HS 420 boasts a heat-formed UniSheet glass panel that minimises distortion and provides an unobstructed view of the interior. This innovative design is aimed at users who appreciate visual aesthetics in their builds. Conversely, the Lian Li A3 features a unique wood and mesh front panel that merges aesthetics with function, creating a modern look while allowing airflow. The choice between these designs will largely depend on personal preference, with the HAVN HS 420 leaning towards a more futuristic style and the Lian Li A3 offering a classic yet modern appeal.
Internal Space and Layout
In terms of internal space, the HAVN HS 420 provides a customisable interior that accommodates various components, including a 3-way adjustable GPU bracket for graphics cards of any size. This level of flexibility allows for a tailored build experience. The Lian Li A3, while compact at 26.3 litres, supports GPUs up to 430mm and CPU coolers up to 167mm tall. The compact design of the A3 is ideal for those who need a smaller footprint, but it does limit the customisation options compared to the more spacious HAVN HS 420.
Cable Management
Cable management is a crucial aspect of PC builds, and the HAVN HS 420 excels with its SimpliCable system. This feature includes integrated cable channels and a PWM fan hub, ensuring a neat and organised build. In contrast, the Lian Li A3 offers intelligent routing channels and modular panels, but it may not provide the same level of organisation as the HAVN. For users who prioritise a tidy interior and easy management of cables, the HAVN HS 420 presents a clear advantage.
Component Compatibility
When considering component compatibility, the HAVN HS 420 supports a wide range of configurations thanks to its adjustable GPU bracket and ample space for components. This makes it suitable for high-end hardware enthusiasts. Meanwhile, the Lian Li A3 is designed to accommodate standard ATX, SFX, and SFX-L power supplies up to 220mm. While it supports high-end components, the limited space compared to the HAVN HS 420 may restrict future upgrades, especially for users aiming for top-tier gaming setups.
Price and Value
At £199.99, the HAVN HS 420 targets users who are willing to invest in a high-performance case with advanced features. Its extensive cooling options and customisation capabilities justify the price for those looking to build powerful systems. Conversely, the Lian Li A3 is priced at £69.95, making it an attractive option for budget-conscious consumers or those requiring a stylish case for mid-range builds. Ultimately, the value of each case will depend on the user’s specific requirements and budget.
Which should you buy?
Choosing between the HAVN HS 420 and the Lian Li A3 largely depends on your individual needs and preferences. If you require extensive cooling capabilities, customisation, and a spacious layout for high-end components, the HAVN HS 420 is the superior option despite its higher price tag. However, if you're looking for a stylish and compact case at a more affordable price, the Lian Li A3 is an excellent choice. Ultimately, both cases serve different audiences, so your decision should align with your specific requirements and budget constraints.
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