Lian Li PC-O11 Air Review

Published by Luca Rocchi on 26.10.18

With the PC-O11 Air, Lian Li has yet another mid-tower case in its portfolio. Unlike other cases from the same series, the PC-O11 Air has been made from steel and plastic. Apart from that this case has been designed with high airflow and versatility in mind allowing a buyer to build a clean looking custom water cooled rig.


Model: PC-O11 Air
Case Type: Mid-tower
Dimensions: 270 mm (W) x 465 mm (H) x 476 mm (D)
Material: Steel, Tempered Glass
Color: Black
Drive Bay: 5.25": 0
3.5": 3
2.5": 6
Expansion slots: 8
Form factors: E-ATX, ATX, mATX, mini-ITX
Cooling: Front: 3x 120mm / 2x 140mm
Rear: /
Top: 3x 120mm / 2x 140mm
Bottom: 3x 120mm / 2x 140mm
Side: 3x 120mm / 2x 140mm
Watercooling Front: 360mm
Side: 360mm
Top: 360mm


  • Lian Li PC-O11 Air
  • Lian Li PC-O11 Air
  • Lian Li PC-O11 Air
  • Lian Li PC-O11 Air
  • Lian Li PC-O11 Air
  • Lian Li PC-O11 Air
  • Lian Li PC-O11 Air
  • Lian Li PC-O11 Air
  • Lian Li PC-O11 Air

Product overview

The Lian Li PC-O11 Air is a rather big mid-tower case with an aggressive design and rather edgy lines. The front, doesn't feature any 5.25" slots, in fact, there is only a large dust filter and behind it you find three fans. The top is quite similar to the front and comes with a similar design. The I/O panel is placed at the front panel and it has been equipped with two USB 3.0 ports, one USB 3.1 Type-C port, audio jacks and the power button. Lian Li decided to not equip this case with a reset button. The PC-O11 Air is mostly made out steel and plastic. Lian Li hasn't been using any aluminium with this case making the PC-O11 a more affordable model.

The back panel is simple and you get eight PCI expansion slots, the opening for the motherboard I/O panel, and the opening for two power supplies (ATX and SFX). The bottom of the case has been equipped with four plastic feet, which ensure that the fans get enough fresh air. Having a look at the cooling side of this case, we see enough space for a big radiator at the top, in the front and another one can be mounted on the side. Furthemore you can use average size CPU tower coolers, which can measuer up to 155mm in height. Regarding other features there is space for up to three HDDs and six SSDs.



  Cooling Features Layout Build Quality Value for Money

+ Good compatibility for watercooling
+ Dust filters

+ Extensive bundle + Tempered glass

+ Two PSUs + Available space for custom water cooling gear

+ Good build quality + Solid price
Cons       - Cheap top panel  

The PC-O11 Air from Lian Li is a good-looking case designed for those who don't want to spend a lot of money on a gaming rig yet get a lot of versatility alongside of it. This case has been designed in collaboration with the well-known German overclocker der8auer and it's compatible with big all-in-one water-cooling solutions as well as extensive custom water-cooling loops. If you plan on equipping this case with custom water-cooling gear, we recommend you to carefully think about what to place where as there are always possibilities to run into compatibility issues along the way.

The materials used, and the build quality are on a good level, which is something we certainly expected from Lian Li. In our opinion only, the top panel would be worth improving since it feels cheaper than the rest of the case and on top of that we've spent a significant amount of time refitting it after disassembling the case. Overall it was surprisingly simple to build a clean looking water-cooled rig using this case and we especially like the fact, that it was possible to use 360mm radiators.

Should you be looking for a versatile case with a high airflow design, then we can recommend this case. Apart from that we can also recommend it for any water-cooling project. Checking prices, we find the PC-O11 Air listed over at Caseking for 129 Euro. Bottom line this case deserves 4 out of 5 stars.

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Lian Li PC-O11 Air Review - Cases - Reviews - ocaholic