Lian Li A3-mATX / Lian Li O11 Vision

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 O11 Vision: O11VX (black), O11VW (white) and O11VC (Color Chrome). The O11 Vision Compact (O11VP), O11 Dynamic EVO and O11 Vision M are separate cases with different dimensions.

SpecificationLian Li A3-mATXLian Li O11 Vision
Release year20242023
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 Li480 × 304 × 464.5 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.

Lian Li		—
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.

Lian Li		—
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.

Lian Li		—
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		—
Radiator supportTop: 360/240 mm; side: 360/280/240 mm; bottom: 240 mm (360 mm with fan at the bottom) Lian LiSide 360/280/240 mm; bottom 360/280/240 mm; rear 240/120 mm; up to 2 × 360 + 1 × 240 mm 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 LiPower and reset buttons, 2 × USB 3.0, 1 × USB Type-C, audio jack

The Type-C speed is not stated by the manufacturer; the motherboard needs a matching internal USB-C header.

Lian Li
Dust filter and warrantyRemovable bottom dust filter; 1-year warranty Lian Li—
Case type—Dual-chamber tower case; steel, aluminium and tempered glass

The second chamber separates the power supply and cables from the main chamber, so only the components show behind the glass.

Lian Li
Glass panels—4 mm tempered glass on the front and side, 3 mm on top; three glass sides without corner pillars

The pillarless joint gives an uninterrupted view inside; because the front is glass there is no front intake, so air comes in from the side and bottom.

Lian Li
Motherboard support—E-ATX (under 280 mm), ATX, Micro-ATX, Mini-ITX Lian Li
Component clearance—Graphics card up to 430 mm; CPU cooler up to 174 mm; ATX power supply up to 232 mm

Large triple-slot graphics cards and long power supplies fit; the cooler height suits most large dual-tower air coolers.

Lian Li
Fan positions—Side 3 × 120 or 2 × 140 mm; bottom 3 × 120 or 3 × 140 mm; rear 1–2 × 120 mm; up to 8 fans (11 with push-pull); no fans included

Fans must be bought separately; a typical layout pulls air in from the bottom and side and exhausts at the rear.

Lian Li
Storage—3 × 2.5-inch behind the motherboard tray; cage for 2 × 3.5-inch or 2 × 2.5-inch (5 in total) Lian Li
Expansion and vertical GPU—6+1 expansion slots; optional VG4-5 vertical GPU kit (up to 4-slot cards, with PCIe 5.0 riser cable)

The vertical kit is not in the box; it is bought separately to show the card facing the glass.

Lian Li
Other—Bottom dust filter; 27 mm feet; 1-year warranty Lian Li