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White micro-ATX steel chassis, rectangular with perforated side panels, front I/O strip, 26.3 litre capacity

Lian Li

Lian Li A3W.US mATX 26.3L PC Case White

SKU CH-N2V4-DDCBD

Compact mATX chassis with 26.3L capacity supporting a 360mm radiator and ten 120mm fans

  • TypeMicro ATX Cases
  • Compact 26.3L chassis fits micro-ATX builds in tight spaces
  • Up to 10 x 120mm fans deliver high airflow potential
  • Dual 360mm radiator support enables serious liquid cooling
  • Standard ATX PSU compatibility simplifies power supply choice
  • Front USB 3.1 Type-C plus dual USB 3.0 Type-A for modern peripherals

Lian Li A3W.US mATX 26.3L Case

The Lian Li A3W.US is a 26.3L micro form factor chassis designed for micro-ATX and mini-ITX motherboards. Developed in collaboration with DAN Cases, it offers a compact steel frame in white. It suits builders who want a small-footprint system with extensive cooling flexibility.

Compatibility Checks Before Ordering

Verify your graphics card length does not exceed 415mm and your CPU cooler height stays within 165mm. The case accepts standard ATX, SFX, or SFX-L power supplies up to 220mm long. Ensure your motherboard form factor is M-ATX or ITX; larger ATX boards will not fit.

Build Quality and Daily Use

The steel construction weighs 11.02 lbs and measures 443mm deep, 194mm wide, and 321.5mm high with feet. Front I/O provides two USB 3.0 Type-A ports, one USB 3.1 Type-C port, and audio jacks. A single bottom dust filter helps keep internals clean during daily operation.

Highlights

  • Compact 26.3L chassis fits micro-ATX builds in tight spaces
  • Up to 10 x 120mm fans deliver high airflow potential
  • Dual 360mm radiator support enables serious liquid cooling
  • Standard ATX PSU compatibility simplifies power supply choice
  • Front USB 3.1 Type-C plus dual USB 3.0 Type-A for modern peripherals

Specifications

TypeMicro ATX Cases

Questions about this item

What comes in the box and do I need to buy any fans or radiators separately?

The case includes a bottom dust filter, two 2.5-inch SSD trays and a bottom mount for one 2.5-inch SSD or one 3.5-inch HDD. Fans and radiators are not included; you can install up to ten 120mm or 140mm fans and radiators up to 360mm on the top or side.

Should I choose an ATX, SFX or SFX-L power supply for this 26.3L chassis?

All three form factors fit. ATX units up to 220mm long are supported, so pick ATX for maximum wattage choice, SFX for extra cable room or SFX-L if you prefer a slightly larger SFX unit.

What does the 415mm GPU clearance mean for my graphics card selection?

Any graphics card up to 415mm long will fit, which covers most triple-fan models. Measure your card; if it exceeds 415mm you will need a different case.

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