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Black mATX mid-tower case with three tempered glass panels, aluminium frame, side-mounted 140mm fan

Lian Li

Lian Li O11VMX mATX Mid Tower PC Case Black

SKU CH-JR1N-7JNVA MPN O11VMX

A compact mATX mid-tower with three tempered-glass panels, a pre-installed 140 mm side fan, hidden AIO routing and support for up to 360 mm radiators, 410 mm graphics cards and 162 mm CPU coolers

  • Max graphics card length410 mm
  • Supported motherboard sizesMicro-ATX / Mini-ITX
  • Power supply mountingBottom
  • Housing materialSteel 4.0 mm Tempered Glass / 3.0 mm Tempered Glass / Alumin
  • Side panel typeTempered Glass Panel
  • Front panel portsPower Button x 1 USB 3.0 Type A x 2 USB 3.2 Type C x 1 Audio

Model Black

  • Three-sided tempered glass shows every component
  • Pre-installed 140 mm fan drives airflow in the right chamber
  • Top cutout fits up to 360 mm AIO for liquid cooling
  • Column-free dual-chamber layout keeps cables tidy and improves thermals
  • Supports graphics cards up to 410 mm and CPU coolers up to 162 mm

Compact mATX Showcase

The Lian Li O11VMX is a mid-tower chassis built for Micro-ATX and Mini-ITX motherboards. Its three-sided tempered glass design puts internal components on full display while a dual-chamber layout separates the power supply from the main hardware. Builders who want a smaller footprint without sacrificing the panoramic view of a larger O11 case will find the balance here.

Sustained Cooling Behaviour

A pre-installed 140 mm fan sits in the right chamber to feed fresh air directly to the radiator area. The top glass panel includes a mesh cutout that allows a 360 mm AIO to exhaust heat upward without recirculation. This hidden AIO arrangement keeps coolant temperatures stable during long sessions rather than relying on short bursts of airflow.

Radiator and Clearance Limits

The top mount accepts radiators up to 360 mm, defining the maximum liquid-cooling capacity. Graphics cards can measure up to 410 mm in length, while CPU air coolers are limited to 162 mm in height. Power supplies fit up to 182 mm deep, and the front I/O provides USB 3.2 Type C, two USB 3.0 Type A ports and an audio jack.

How it compares

Measured against everything we stock in Tower & Desktop PC Cases, at today’s prices. Recalculated every night.

Price $65.99
Cheaper than about 76% of the 1,468 comparable items (median $100.99).
Max graphics card length 410 mm
Higher than about 60% of the 894 comparable items (median 400 mm).

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Specifications

Product
Brand nameLIAN LI
Product colorBlack
Ports & slots
Front panel portsPower Button x 1
USB 3.0 Type A x 2
USB 3.2 Type C x 1
Audio x 1
Size & build
Max graphics card length410 mm
Power supply mountingBottom
Housing materialSteel 4.0 mm Tempered Glass / 3.0 mm Tempered Glass / Aluminum
Side panel typeTempered Glass Panel
Dust filteringYes
Product dimensions419.6 mm × 275.1 mm × 395.2 mm
Product weight7.9 kg
Shipping weight9.75 kg
Package size420 × 395 × 275 mm
Compatibility
Supported motherboard sizesMicro-ATX / Mini-ITX
CPU cooler height limit162 mm
PSU length limit182 mm
More details
140mm fans1
Included fansSide - 1 × 140 mm

Other versions of this model

3 more in the same range

Questions about this item

How much noise and heat does the pre-installed 140 mm side fan add when the system runs all day?

The single 140 mm fan in the right chamber is designed for low-RPM airflow across the hidden radiator, so acoustic output stays modest while exhausting heat through the top glass cutout.

Which additional components must I already own for this case to function?

You need a Micro-ATX or Mini-ITX motherboard, an ATX power supply no longer than 182 mm, a CPU cooler under 162 mm, and a graphics card up to 410 mm.

Will my existing 360 mm AIO and full-length GPU fit alongside the tempered glass panels?

Yes — the top panel cutout accepts a 360 mm radiator, the GPU clearance is 410 mm, and the three 3.0 mm and 4.0 mm glass panels leave those dimensions untouched.

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