Lian Li
A3-mATX-26.3L Micro Form Factor Chassis-Flexible Power Supply Installation-No Fans Included-Supports 360mm AIO-Modularity Design-For M-ATX and ITX Motherboard-DAN Collaboration-Black (?A3X.US)
*Price sourced from Amazon.com. Last updated 2026-05-24. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies Lian Li A3-mATX-26.3L Micro Form Factor Chassis-Flexible Power… as a category leader on buyer feedback in the retro motherboards category, based on 212 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Lian Li's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for retro motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.6★ average across customer reviews
- ✓ Backed by Lian Li's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Compact 26.3L Design, Big Hardware Support: Accommodates mATX/ITX motherboards with 4 expansion slots and GPUs up to 415mm—achieve a compact footprint without sacrificing performance.
- High Airflow Steel Mesh Panels: Designed with steel mesh side and top panels for optimal airflow, making it perfect for high-TDP GPUs and radiator setups.
- Supports 360mm Radiators and Up to 10 x 120mm Fans: Capable of housing a 360mm radiator and multiple 120mm fans—include a simple fan/radiator placement diagram in the images for clarity.
- Flexible PSU Installation (Front/Side): Compatible with ATX/SFX/SFX-L and LIAN LI EDGE power supplies; orientation options enhance clearance and cable management.
- Stylish Sleek Front Panel with Modular Design: Features a sleek black front panel and a modular structure, ideal for creating compact, clean, and minimalist PC builds.
Full Specifications
| Brand | Lian Li |
|---|---|
| Color | Black |
| Fan Size | 120 Millimeters |
| Material | Alloy Steel |
| Case Type | Mini-Tower |
| Model Name | A3X.US |
| Unit Count | 1.0 Count |
| Model Number | A3X.US |
| Compatibility | PC |
| Cooling Method | Air |
| Mfr Part Number | A3X.US |
| Total Usb Ports | 2 |
| Antenna Location | Gaming |
| Compatible Devices | M-ATX and ITX motherboards, graphics cards up to 415mm, 360mm radiators, 10 x 120mm fans, ATX, SFX, SFX-L power supply units |
Ready to buy?
Lian Li A3-mATX-26.3L Micro Form Factor Chassis-Flexible Power Supply Installation-No Fans Included-Supports 360mm AIO-Modularity Design-For M-ATX and ITX Motherboard-DAN Collaboration-Black (?A3X.US) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-24. Price and availability subject to change.
Related Retro Motherboards
