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Rated Excellent
4.8 star rating
Free delivery over £50
to most of the UK
0% interest for 4 months
on purchases over £99
Custom PCs built fast
delivered in 4-5 days
3 year on-site PC warranty*
including parts & labour

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Lian Li PC-O11DX Gaming Case - Black

CCL Code: CAS3707
Manufacturer Code: PC-O11DX
| Manufacturer: Lian Li

Key Features:

  • PSU not included
  • 0 x 5.25" External Bay(s)
  • 4 x 2.5", 2 x 3.5" HDD Bay(s)
  • Max MB Size: E-ATX
  • Tempered Glass
  • Front USB Type-C Port

Delivery Options

Saturday 29th January via DPD Saturday

Free Delivery by Monday 31st January

Collection Options

Monday 31st January from Local Collection Point

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Audio Line Out Ports x 1
USB Ports 3.0 x 2, 3.1 Type-C x 1

Optical Drive

Optical Drive Type None


External Expansion Bays 0
Internal Expansion Bays 3.5" x 2, 2.5" x 4
Floppy Disk Drive None


Expansion Slots 8


Cooling System 3 x 120 mm (bottom), 3 x 120 mm (top), 3 x 120 mm (side, front)
Power Supply ATX (Not Included)


Form Factor Midi Tower
Case Colour Black
Material Steel (interior), Aluminium (front), tempered glass (front, side)
Motherboard Compatibility E-ATX, ATX, Micro-ATX
Width 272mm
Depth 445mm
Height 446mm
Weight 10,1 kg

Key Features

Firewire No
Main Colour Black
Case Type Tower
USB 3.0 Support Yes
Case Form Factor Mid Tower
Power Supply Included No
Optimised for Gaming
80Plus Rated No
PSU Form Factor ATX
Display Model in Showroom No
L.E.D Fan No LED
Internal 3.5" Bay 2
Internal 2.5" Bay 4
Micro-ATX Yes
Cooler Height 155 mm
Built-in Card Reader No
USB Type-C Support Yes
Front HDMI No
Side Panel Type Tempered Glass
GPU Length 420 mm
PSU Depth 255 mm
Front Audio Type Separate
Maximum Motherboard Size Supported E-ATX


Warranty 1 Year

Item Details

Manufacturer Lian Li
Manufacturer Code PC-O11DX
Alternative Part Number O11 Black
EAN 4718466008633
UPC 840353009318
Condition New

Warranty Information

Warranty 1 Year

Manufacturer Information

Manufacturer Lian Li
Manufacturer Code PC-O11DX
Questions and Answers

Do you have you a question about the Lian-Li PC-O11 Dynamic Midi-Tower - Black Window?

5 / 5 9 reviews

Steve perry

last month

Awesome case. Well made and so easy to build in. No wonder its the best selling case ever !


6 months ago

Lian li quality at a very good price point. Sufficiently roomy for a decent spec system and the glass panels really do a great job of showing off your rig (assuming youre good with that). System temps are good and the case is very easy to build in. Im running a 360mm AIO in the roof. Definitely recommended.

Dan Chambers

December 2020

Awesome case. Extremely easy to build in and you can basically fit in whatever hardware you like in here as long as it isnt a cpu cooler over 155mm tall. If you want to vertically mount your gpu and still use the bottom fan positions and a pcie Wi-fi card the phanteks gpu riser is perfect for this and requires no modification to fit. Highly recommended to all

Matt Lovell

November 2020

Although this case seems to be the "go to" option and has earned a reputation of being a bit "overdone", it's easy to see why. Very few downsides and a pleasure to build in. Good airflow and aesthetics. Only tiny complaint is that the bottom fans make accessing the headers on the bottom of my mobo a bit difficult. The USB 3.0 connector is the worst as it is not very flexible but it still fits.


May 2020

Excellent build quality - no rough or disappointing parts to the case. Lots of space to build in, was really enjoyable to build a system in, no part of the case made it difficult.

C. Hillier

March 2020

The perfect mix of looks and ease of use


January 2020

What a fantastic case, even though it's meant for custom water cooling I used an AIO instead and it still looks awesome. One of the major selling points of this case for me was the placement of the power supply . It is at the back of the case behind the motherboard so is completely hidden, this adds to the sleek look of the internals. With tons of space to work with, I can recommend this case to anyone looking for an awesome case with tempered glass sides.

Liam Yule

November 2019

High Quality Glass and looks amazing.


October 2019

By far the best pc case on the market today. Best for airflow, beautiful tempered glass at an affordable price.