We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black aluminium steel glass mid tower with mesh panels and ARGB front strip

Lian Li

Lian Li O11DEX Black ATX Mid Tower PC Case

SKU CH-VC32-89XHQ MPN O11DEX

ATX mid-tower case with reversible layout, top and side mesh panels, and support for up to nine SSDs or six HDDs plus three SSDs

  • TypeATX Mid Tower
  • ColorBlack
  • Case MaterialAluminum / Steel / Tempered Glass
  • With Power SupplyNo
  • Motherboard CompatibilityMicro ATX / ATX / ITX / E-ATX
  • Side Panelwith Side Window
  • Supports up to nine SSDs or six HDDs plus three SSDs for ample storage
  • Reversible layout lets you show the main chamber on either side for flexible builds
  • Top and side mesh panels deliver optimised airflow for effective cooling
  • Front I/O includes USB 3.0, USB 3.1 Type-C and audio for convenient connectivity
  • Pin mounting mechanism allows quick side-panel removal without taking off the top panel

Reversible Mid-Tower Chassis

The Lian Li O11DEX is an ATX mid-tower built from aluminum, steel and tempered glass. It supports Micro-ATX, ATX, ITX and E-ATX motherboards. The reversible layout lets you place the main chamber on the left or right side. ARGB lighting on the front panel is controlled by a button, L-Connect software or motherboard sync.

Flexible Cooling And Storage Layout

Top, side and bottom positions each accept three 120 mm or two 140 mm fans. Radiator support reaches 360 mm on top and side with a combined thickness limit of 87.5 mm on top and 83 mm or 63 mm inside depending on fan size. A 60 mm fan can mount on the drive cage. Nine 2.5-inch SSD pads are included across the drive cage, cable bar and side brackets, plus room for six 3.5-inch drives.

Upgrade From Fixed-Layout Cases

The pin-mount side panels open without removing the top panel and the hook-style cable bar handles bulky cables with Velcro straps. Swappable fan and radiator brackets simplify custom loops. If your current case limits radiator thickness, GPU length to 426 mm or CPU cooler height to 167 mm, this chassis removes those constraints.

Highlights

  • Supports up to nine SSDs or six HDDs plus three SSDs for ample storage
  • Reversible layout lets you show the main chamber on either side for flexible builds
  • Top and side mesh panels deliver optimised airflow for effective cooling
  • Front I/O includes USB 3.0, USB 3.1 Type-C and audio for convenient connectivity
  • Pin mounting mechanism allows quick side-panel removal without taking off the top panel

Specifications

BrandLIAN LI
SeriesO11 Dynamic EVO
ModelO11DEX
TypeATX Mid Tower
ColorBlack
Case MaterialAluminum / Steel / Tempered Glass
With Power SupplyNo
Motherboard CompatibilityMicro ATX / ATX / ITX / E-ATX
Side Panelwith Side Window
LEDARGB
Dust FiltersBottom
Internal 3.5" Drive BaysBottom: 3.5" HDD x 2 or 2.5" SSD x 4
Side: 3.5" HDD x 2 or 2.5" SSD x 4
Drive Cage: 3.5" HDD x 2 or 2.5" SSD x 3
Internal 2.5" Drive BaysDrive Cage: 2.5" SSD x 1
Cable Management Bar: 2.5" SSD x 2
* Only 9 sets of 2.5" SSD mounting pads are provided.
Expansion Slots8
Front Ports2 x USB 3.0 / 1 x USB 3.1 Type-C / Audio
Fan OptionsTop: 3 x 120mm / 2 x 140mm fan
Side: 3 x 120mm / 2 x 140mm fan
Bottom: 3 x 120mm / 2 x 140mm fan
Rear: 1 x 120mm fan
On Drive Cage: 1 x 60mm fan
Radiator OptionsTop: 280mm / 360mm (* Total max thickness: 87.5mm)
Side: 280mm / 360mm
* Inner scenario total max thickness:
83mm (120mm fan on top and bottom)
63mm (140mm fan on top and bottom)
* Outer scenario total max. thickness:
120mm (120mm fan on top and bottom)
100mm (140mm fan on top and bottom)
Bottom: 360mm (* Total max thickness: 87.5mm)
Max GPU Length426 mm
Max CPU Cooler Height167 mm
Max PSU Length220 mm
Dimensions18.07" x 11.22" x 18.31"
Shipping weight15.92 kg
Package size699 × 572 × 381 mm

Questions about this item

How long a graphics card fits before it hits the drive cage?

The case accepts cards up to 426 mm so most triple-slot models clear the side-mounted drive cage without modification.

What happens to thermals and noise when the mesh panels run fans at load all day?

Top, side and bottom mounts each take three 120 mm or two 140 mm fans, while the rear adds one 120 mm and the drive cage a 60 mm unit, giving high airflow with room to run fans at lower RPM for quieter operation.

Which motherboard power and front-panel connectors must my build already provide?

You need a board with a 24-pin ATX and 8-pin EPS supply, plus headers for two USB 3.0, one USB 3.1 Type-C and HD audio to use the front I/O panel.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.