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White steel micro-ATX tower with mesh side and top panels, solid front, no window

Lian Li

Lian Li A3-mATX White Micro-ATX PC case

SKU CH-E3YY-826N7 MPN A3-mATX White

White steel Micro-ATX chassis with three mesh panels, relocatable PSU bracket, 360 mm radiator support and room for 430 mm GPUs

  • Front Ports1 x Power Button, 2 x USB 3.0 Type-A, 1 x USB 3.1 Type-C, 2
  • ColorWhite
  • Case MaterialSteel
  • TypeMicro ATX / Mini-ITX
  • Side Panelwithout Side Window
  • Internal 3.5" Drive Bays1

Options White Front Panel

Struck-through versions exist but are not stocked here.

  • Supports 360 mm radiator on top and side for high cooling capacity
  • Removable panels and modular brackets enable tool-free assembly and cable routing
  • Relocatable PSU bracket allows front or motherboard-side mounting for flexible layouts
  • Fits 430 mm GPU and 167 mm CPU cooler in a compact Micro-ATX frame
  • Three steel-mesh panels provide unrestricted airflow across the chassis

Compact micro-ATX chassis

The Lian Li A3-mATX White is a Micro-ATX and Mini-ITX case built from steel with mesh panels on three sides. It targets builders who want a small footprint without giving up liquid-cooling options or long graphics cards. No fans are included, so airflow must be planned from the start.

Flexible PSU placement upgrades layout options

The power supply can sit at the front or beside the motherboard, letting the builder choose between GPU length and radiator space. Moving the PSU forward clears room for a 360 mm radiator on the side or top, while the rear position favours a 430 mm graphics card. The jump is worth it when a custom loop or thick AIO is required in a micro tower.

Capacity headroom for drives and cooling

One 3.5 inch bay and two 2.5 inch bays cover primary storage. Top, side and bottom each accept a 360, 280 or 240 mm radiator, though the bottom slot is limited to 280 or 240 mm. A 25 mm fan at the bottom restricts GPU thickness to 61 mm, so three-slot cards fit only with slim fans or a relocated PSU. CPU cooler height stops at 167 mm.

Highlights

  • Supports 360 mm radiator on top and side for high cooling capacity
  • Removable panels and modular brackets enable tool-free assembly and cable routing
  • Relocatable PSU bracket allows front or motherboard-side mounting for flexible layouts
  • Fits 430 mm GPU and 167 mm CPU cooler in a compact Micro-ATX frame
  • Three steel-mesh panels provide unrestricted airflow across the chassis

Specifications

Front Ports1 x Power Button, 2 x USB 3.0 Type-A, 1 x USB 3.1 Type-C, 2 x Audio,
BrandLIAN LI
ModelA3- mATX White
ColorWhite
Case MaterialSteel
TypeMicro ATX / Mini-ITX
Side Panelwithout Side Window
Internal 3.5" Drive Bays1
Internal 2.5" Drive Bays2
Fan OptionsTop: 3 x 120mm or 2 x 140mm
Side: 3 x 120mm or 2 x 140mm
Bottom: 3 x 120mm or 2 x 140mm
Rear: 1 x 120mm
Radiator OptionsTop: 1 x 360/280/240mm
Side: 1 x 360/280/240mm
Bottom: 1 x 280/240mm
Max GPU Length430 mm
Max CPU Cooler Height167 mm
Max PSU Length220 mm
Dimensions17.44" x 7.64" x 12.66"
Shipping weight5.97 kg
Package size508 × 384 × 272 mm

Other versions of this model

2 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What clearance does the 167 mm CPU-cooler limit leave for a top-mounted 360 mm radiator and fans?

The case allows a 360 mm radiator in the top position; total cooler height including fans must stay within the 167 mm maximum.

Which screws or clips secure the PSU bracket when it is moved to the front mounting position?

The PSU bracket uses standard case screws; remove the rear bracket screws, slide the bracket forward, and re-fasten it in the front holes.

How often should the removable bottom dust filter be cleaned in a typical home environment?

Clean the bottom dust filter every three to six months, or whenever visible dust build-up restricts airflow through the mesh.

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