Lian Li
Lian Li A4-H20 A4 Mini ITX Desktop Case
Best compact chassis for high-performance small form factor PC builders.
The Lian Li A4-H20 is a premium 11-liter small form factor PC case, developed in collaboration with DAN Cases. It refines the classic sandwich layout for a minimalist and compact design, enhancing hardware compatibility and simplifying the building process. Featuring an aluminum exterior and a steel interior, this chassis offers a sleek yet robust foundation for a powerful, compact desktop computer. It supports AIO water cooling and accommodates triple-slot GPUs, making it ideal for high-performance builds in a small footprint.
$149.99
Owner Satisfaction
4.6
/ 5
Category Rank
79
/ 898
#79 in Desktop Computer Cases
Price vs Category Average
-76%
Below average
Color
Silver Exterior, Matte Black Interior
/ Silver Exterior, Matte Black Interior
Who it's for
- Travelers and minimalists needing a small, portable desktop footprint
- Performance seekers wanting liquid cooling in a tiny chassis
- Gamers building high-end systems with large, powerful graphics cards
Who should skip it
- Novice builders frustrated by tight spaces and complex cable management
- Budget-conscious shoppers looking for more affordable ITX case options
- Users requiring extensive internal storage for large media libraries
Performance breakdown
Build Quality
Premium aluminum exterior provides a sleek, rigid, and professional aesthetic.
Hardware Compatibility
Accommodates triple-slot GPUs and 240mm radiators within a tiny footprint.
Ease of Assembly
Thoughtful internal layout makes building in this small chassis surprisingly intuitive.
Thermal Efficiency
Sandwich design optimizes airflow for high-performance components in tight spaces.
Space Efficiency
Remarkable 11-liter volume maximizes power density for minimalist desktop setups.
Connectivity
Essential front-panel ports include modern USB-C for convenient daily access.
Key Specs
Color
Silver Exterior, Matte Black Interior
Riser Cable Generation
PCIe 4.0
Dimensions
326mm (D) x 140mm (W) x 244mm (H)
Capacity
11L
Materials
Aluminum Exterior, SPCC Steel Interior
Motherboard Support
Mini-ITX
Radiator Support
Top: 1x 240mm (55mm max total thickness with fans)
Expansion Slots
3
Features
- Compact 11-liter volume
- Premium aluminum and steel construction
- Efficient sandwich layout
- Supports 240mm AIO liquid coolers
- Compatible with SFX/SFX-L PSUs
- Accommodates triple-slot GPUs
- Easy access with removable bottom panel
- PCIe 4.0 riser cable support
What customers say
The Lian Li A4 H20 is celebrated for its exceptional design efficiency, masterfully merging premium aluminum quality with a remarkably compact footprint. Enthusiasts value how this small form factor case accommodates powerful components like large GPUs and 240mm liquid coolers, a significant achievement in SFF building. Assembly is generally considered straightforward due to thoughtful panel access, supporting its sleek, minimalist aesthetic. While the premium cost positions it for high-end builders, the primary considerations involve careful component compatibility checks and patient cable management. Overall, the consensus highlights its superior performance density and premium build, establishing it as a benchmark for high-performance mini ITX systems.
Know before you buy
The case supports triple-slot GPUs with a maximum length of 322mm. This allows for most high-performance modern graphics cards to fit comfortably within the 11-liter footprint.
Yes, the A4-H20 includes a high-quality PCIe 4.0 riser cable. This ensures full compatibility with modern graphics cards without needing to adjust BIOS settings for older PCIe standards.
No, this case is specifically designed for SFX or SFX-L power supplies. Standard ATX units are too large to fit within the compact internal layout.
The case supports a 240mm AIO liquid cooler mounted at the top. Note that the total thickness of the radiator and fans combined must not exceed 55mm to ensure a proper fit.
The A4-H20 is designed with a removable bottom panel and a refined sandwich layout, which makes the building process significantly easier than many other small form factor cases. However, cable management requires patience due to the limited internal space.
The chassis provides space for one 2.5-inch SSD. If you require more storage, you will need to rely on M.2 NVMe drives installed directly onto your Mini-ITX motherboard.
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