Lian Li LANCOOL III (black, LANCOOL 3-X) / Lian Li O11 Air Mini

Lian Li LANCOOL III (black, LANCOOL 3-X): LANCOOL 3-X: black version with four 140 mm PWM fans. The white LANCOOL 3-W and the ARGB-fan 3R-X and 3R-W are colour and fan options of the same case; the LANCOOL 207 and 216 are separate cases.

Lian Li O11 Air Mini: O11 Air Mini (2021); black O11AMX and white O11AMW. The O11 Dynamic Mini, O11D Mini V2 Flow and full-size O11 Dynamic are separate cases.

SpecificationLian Li LANCOOL III (black, LANCOOL 3-X)Lian Li O11 Air Mini
Release year20222021
Dimensions526 × 238 × 523 mm (D × W × H) Lian Li—
Motherboard and power supplyE-ATX (under 280 mm wide), ATX, Micro-ATX, Mini-ITX; ATX power supply up to 220 mm Lian Li—
Materials0.8 mm SGCC steel; 4 mm tempered glass on both sides; aluminium door handles

The side glass panels are hinged and open like doors.

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Included fans3 × 140 mm PWM at the front, 1 × 140 mm PWM at the rear; 200–1800 rpm, 83.5 CFM, 33 dB(A)

On the ARGB-fan 3R versions the fan speed is 300–1650 rpm.

Lian Li		2 × 140 mm PWM at the front, 1 × 120 mm PWM at the rear

PWM fans adjust their speed to temperature using a signal from the motherboard.

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Fan supportFront 3 × 120/140 mm, top 3 × 120/140 mm, rear 1 × 120/140 mm, above the PSU shroud 3 × 120 mm Lian LiTop 3 × 120 / 2 × 140 mm; side 2 × 120 mm; bottom 2 × 120 / 2 × 140 mm; front 2 × 120 / 2 × 140 mm; rear 1 × 120 mm Lian Li
Radiator supportFront 360/420 mm, top 360/420 mm, above the PSU shroud 360 mm Lian LiTop 240 or 280 mm; side 240 mm; bottom 240 or 280 mm; front 240 or 280 mm

When fitting a 240 mm radiator at the top with an ATX board, an offset bracket is used to avoid clashing with memory modules.

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Component clearancesGraphics card up to 435 mm; CPU cooler up to 187 mm Lian Li—
Storage2 + 3 + 3 × 2.5-inch bays and a 4 × 3.5/2.5-inch drive cage Lian Li6 × 2.5-inch SSD or 3 × 2.5-inch SSD + 3 × 3.5-inch HDD

Drives mount in the chamber behind the motherboard tray.

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Expansion slots8 Lian Li—
Front I/OPower, reset, 2 × USB 3.0, 1 × USB Type-C, audio Lian Li2 × USB 3.0, 1 × USB 3.1 Type-C, 1 × HD Audio

The Type-C port needs a matching front-panel USB-C header on the motherboard.

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Dust filter and warranty1 bottom dust filter; 1-year warranty Lian Li—
Size and materials—400 (D) × 288 (W) × 384 (H) mm; 4 mm aluminium panel, 0.8 mm mesh panel, 4 mm tempered glass

The mesh pattern on the front, top and side is designed to let fans draw air straight from outside.

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Motherboard—E-ATX (up to 280 mm wide), ATX, Micro-ATX, Mini-ITX

The 7-slot back panel is for ATX, Micro-ATX and ITX; the 5-slot back panel is for Micro-ATX and ITX. Both are included.

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Graphics card and vertical mounting—Up to 362 mm long; 7 or 5 expansion slots; vertical GPU support (top or bottom mode)

With the vertical GPU bracket in top mode, two 120 mm fans can be fitted under the card; in bottom mode there is no room for them.

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CPU cooler and power supply—CPU cooler up to 170 mm; ATX power supply up to 200 mm Lian Li
Dust filter—1 × removable bottom dust tray Lian Li