Lian Li
Lian Li A4-H20 X4
Best compact case for enthusiasts building high-performance small form factor PCs.
The Lian Li A4-H20 X4 is a compact Mini ITX desktop case celebrated for its classic, space-saving design. Despite its small 11.136 L volume, it accommodates powerful components, including GPUs up to 322 mm. Its mesh side panel aids thermal performance, and it supports both 120 mm and 240 mm radiators for flexible cooling. The case's near-complete deconstruction simplifies assembly, and it features essential front panel USB-C and USB-A ports for convenient connectivity. This case is an excellent choice for building a stylish and efficient small form factor PC.
$155.99
Owner Satisfaction
4.7
/ 5
Category Rank
14
/ 898
#14 in Desktop Computer Cases
Price vs Category Average
-76%
Below average
Form Factor
Mini ITX Desktop
/ Mini ITX Desktop
Who it's for
- Power users building high-performance systems in minimal desk footprints
- Gamers needing liquid cooling for high-wattage processors
- Minimalists seeking a premium, professional aesthetic for their workspace
Who should skip it
- Builders lacking the patience for intricate cable routing
- Budget-conscious shoppers prioritizing value over compact form factors
- Overclockers pushing hardware to extreme thermal limits
Performance breakdown
Space Efficiency
Remarkably dense layout packs high-end hardware into a tiny footprint.
Assembly Experience
Full deconstruction and uniform screws make the build process remarkably intuitive.
Thermal Management
Mesh panels and radiator support keep powerful components cool under load.
Component Compatibility
Accommodates full-length GPUs despite the ultra-compact Mini ITX form factor.
Build Quality
Premium materials and precise engineering reflect Lian Li's high manufacturing standards.
Connectivity
Essential USB-C and USB-A ports provide modern, accessible front-panel utility.
Key Specs
Form Factor
Mini ITX Desktop
Dimensions
326 mm x 140 mm x 244 mm
Volume
11.136 L
Maximum Video Card Length
322 mm
Drive Bays
1 x Internal 2.5"
Expansion Slots
3 x Full-Height
Front Panel Ports
USB 3.2 Gen 2 Type-C, USB 3.2 Gen 1 Type-A
Radiator Support
120 mm, 240 mm
Features
- Extremely compact Mini ITX layout
- Near-complete deconstruction for easy building
- Uniform screw size simplifies assembly
- Supports large components for its size
- Sleek and classic aesthetic design
- Mesh side panel for optimal airflow
- Flexible cooling with radiator support
- Front panel USB-C and USB-A connectivity
What customers say
The Lian Li A4 H20 earns high marks for its exceptional build quality and ingenious compact design. Consumers appreciate the premium aluminum construction, noting its durability and refined aesthetic. This case successfully balances minimal footprint with surprising component compatibility, allowing for powerful builds in tight spaces. While the small form factor naturally presents a challenging assembly process, the resulting clean look and efficient layout deliver significant satisfaction, reinforcing its position as a top tier SFF enclosure.
Know before you buy
The case accommodates graphics cards up to 322 mm in length. Given the compact 11.1 L volume, ensure your specific GPU model fits within this limit and verify the thickness, as it supports three full-height expansion slots.
Yes, the A4-H20 X4 is designed to support AIO liquid cooling with radiators up to 240 mm. This makes it a capable choice for cooling high-performance CPUs in a small form factor build.
It is designed to be user-friendly despite its small size. The case features a near-complete deconstruction capability and uses uniform screw sizes throughout, which significantly simplifies the installation process.
The case includes one internal 2.5-inch drive bay. Because of the extremely compact layout, you will need to rely on M.2 NVMe drives on your motherboard for additional storage capacity.
The mesh side panels are essential for this case, as they allow for direct intake of fresh air to your GPU and CPU. This design significantly improves airflow compared to solid-panel small form factor cases, helping to keep components cool under load.
This case is strictly compatible with Mini ITX motherboards. It will not fit Micro ATX or standard ATX boards due to its 11.136 L volume.
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