Lian Li A3-mATX / Lian Li LANCOOL II MESH Performance

Lian Li A3-mATX: A3-mATX steel case in black or white (A3-mATX BLACK / WHITE). The Wood Edition with a wooden front (A3-mATX-WD) and the Glass Edition with 3 mm tempered glass (A3-mATX-WDG) share the interior layout but differ in materials and dust filter arrangement; the later B4-mATX is a separate case.

Lian Li LANCOOL II MESH Performance: LANCOOL II MESH Performance (black; the Performance-X version adds USB-C). The LANCOOL II MESH RGB with RGB fans, the white colour and the glass-front LANCOOL II are separate versions; the LANCOOL III and 216 are different cases.

SpecificationLian Li A3-mATXLian Li LANCOOL II MESH Performance
Release year20242020
Case type and volumeMFF (Micro Form Factor); 26.3 L Lian Li—
Dimensions443 × 194 × 321.5 mm (D × W × H); 306 mm tall without feet Lian Li478 × 229 × 494 mm (D × W × H) Lian Li
MaterialSteel; side and top panels in steel mesh

The Wood Edition has a wooden front panel, and the Glass Edition adds 3 mm tempered glass.

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MotherboardM-ATX and ITX; 4 expansion slots Lian Li—
Graphics cardUp to 415 mm long, 4 slots thick

According to Lian Li, a 25 mm bottom fan limits card thickness to 61 mm (3 slots); a bottom radiator plus fan leaves no room for a graphics card. An anti-sag GPU bracket is included; vertical mounting needs a separately sold kit.

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CPU coolerUp to 165 mm tall Lian Li—
Power supplyATX / SFX / SFX-L up to 220 mm; side or front mounting

The relocatable bracket lets the power supply move to suit graphics card length; an ATX unit can also be mounted at the front on the SSD bracket.

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Fan supportTop: 3 × 120 mm; side: 3 × 120 mm or 2 × 140 mm; bottom: 3 × 120 mm; rear: 1 × 120 mm

The case ships without fans; they must be bought separately.

Lian Li		Front: 2 × 140 mm or 3 × 120 mm; top: 2 × 120 mm or 2 × 140 mm; top of PSU chamber: 2 × 120 mm

The built-in hub supports up to six 3- or 4-pin fans; the four-mode button selects fan speed.

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Radiator supportTop: 360/240 mm; side: 360/280/240 mm; bottom: 240 mm (360 mm with fan at the bottom) Lian Li—
Drive supportTray: 2 × 2.5" SSD; bottom: 1 × 2.5" SSD or 1 × 3.5" HDD Lian Li—
Front I/OPower button, 2 × USB 3.0 Type-A, 1 × USB 3.1 Type-C, mic, HD audio Lian Li2 × USB 3.0; 1 × USB 3.1 Type-C; TRRS audio jack; fan speed button

The USB-C port is on the Performance-X version; other versions add it with a separately sold kit.

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Dust filter and warrantyRemovable bottom dust filter; 1-year warranty Lian Li—
Case type and motherboard—Mid-tower; E-ATX (under 280 mm wide), ATX, Micro-ATX, Mini-ITX Lian Li
Materials—Steel; 4 mm tempered glass on both sides

The glass panels and PSU covers are hinged doors that close with magnets; the cable-side glass comes with covers that hide the cables.

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Included fans—2 × 140 mm PWM at the front (600–1200 rpm, 60.56 CFM, 25.8 dB(A)); 1 × 120 mm PWM at the rear (600–1500 rpm, 54.6 CFM, 26.1 dB(A))

PWM fans are 4-pin fans whose speed can be controlled by the motherboard or the case controller.

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Radiator—Front (multi-way bracket): 360/280/240 mm; top: 240 mm (aligned to the left)

The multi-way bracket places a radiator closer to the motherboard or the front panel; Lian Li warns not to mount a 140/280 mm radiator on the inner side of the bracket.

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Component clearances—Graphics card 384 mm; CPU cooler 176 mm; PSU 210 mm; 7 expansion slots Lian Li
Drive bays—3 × 3.5″/2.5″ in the cage; 2 × 2.5″ behind the motherboard tray; 2 × 2.5″ behind the right flip panel; 2 × 2.5″ above the PSU chamber

There is room for up to 9 drives; the drive cage slides on a rail without tools.

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Dust filters—Magnetic top filter, tray-type bottom filter

No separate dust filter is listed for the mesh front panel.

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Optional kits—Vertical GPU kit (PCIe 3.0 riser); hot-swappable back plate; anti-sag GPU bracket

When using the PCIe 3.0 riser with a PCIe 4.0 motherboard and graphics card, the slot must be set to Gen 3 in the BIOS.

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