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Friday | October 15, 2021
Lian-Li PC-O6s Review

Lian-Li PC-O6s Review

Over the past few years Lian-Li have created a number of PC cases which are more than just a big metal box. Today we take a look at one of their latest models, mixing brushed aluminium and glass, in our Lian-Li PC-O6s Review.

Lian-Li PC-O6s Review – Packaging and Bundle

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The PC-O6s arrives in a large plain cardboard box, very minimal branding. Inside the case is suspended in foam and wrapped in plastic to ensure it arrives in good condition. Bundled with it we get the manual, a drive bay cover and the base/stand along with all the screws, cables, ties etc which allow us to build the system.

Lian-Li PC-O6s Review – External


The side view of the PC-O6s is shown above, although the case can be used horizontally making the 5mm tempered glass surface the top. The O6s is classed as a mid-tower supporting Micro-ATX boards (other sizes available). This model measures 484x515x148mm and the predominant material is a brushed aluminium which is painted black.

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Looking down the front surface we have a large perforated surface which allows airflow into the system and beside it is a panel for our connectivity. This starts with 3.5mm in/out and continues with 4x USB 3.0. Also located in this area is the power button.

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Up on top we find a large perforated section which provides our main airflow with space for 3x12cm fans (pre-installed). Water Cooling is also supported, more on that in a moment. Round at the back of the system we find the motherboard I/O area, four PCIe slot brackets. Those looking closely will also see that these are built back a little from the edge of the chassis, just like the power connector which means we have holes to route cables inside in a tidy way.


Turning round to the back side (or base in horizontal orientation) we can see the large removable panel which Lian-Li provide to allow access to the underside of the motherboard tray for wiring/installation purposes. There is also a 12/14cm fan location here for those who want a little extra airflow.

Lian-Li PC-O6s Review – Internal

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Shown above we have the PC-O6s with the glass and side panel removed. We’ll look round the main chamber in a moment, for now the key points of the back side are the location for drives, two 3.5″ or 3 2.5″ or one 3.5″ and two 2.5″. It is also possible to route wiring in this area too.

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Looking around the main chamber we start at the top and can see those three pre-installed 12cm fans. This area can also be used for a radiator location with 400x132x60mm space available. The PSU mount can be seen just beneath this and models up to 18cm in length are supported.Turning round towards the back we see that Lian-Li provide a PCIe riser cable, taking our PCIe 16x Gen 3.0 slot from the motherboard area and allowing us to install cards up to 29cm at an angle down in the corner of the case. For those who dont need larger GPUs another 2x 3.5″ or 2.5″ set of drives can be located there and we have a further HDD bracket at the bottom front corner which allows us to store another three 3.5″ drives…as for the slimline optical drive bay which is front facing. That can be used for a 2.5″ drive too. Finally, cooler support tops out at 85mm.

Lian-Li PC-O6sx Review – Conclusion


There is no doubting that Lian-Li make high quality, attractive cases. We’ve seen a number of them over the years but times have changed and lovely aluminium boxes are often not enough. In the case of the PC-O6s Lian-Li have decided to go with that large panel of 5mm tempered glass and it looks great. The pane feels very solid and attaches with ease (four screws) and the chassis itself is also manufactured to a high standard. All edges were crisp and the paint applied flawlessly. Being an aluminium model the case is also very light, even with the glass attached.

As far as design goes, the ability to use the case horizontally is a nice to have aspect however for the full effect we would stick with vertical every time, allowing the full view of the window. A purchase of LEDs will be required for maximum effect (Lian-Li do offer them own) and of course many high end GPUs already have LEDs too, as do some memory sticks and PSUs. Speaking of PSUs, that is one aspect of the case which could have been improved. We would have liked a perforated area under the PSU location so we could mount the PSU to draw air in from behind the motherboard tray. A minor issue though, just like the lack of a dust filter behind the front perforated section.

Elsewhere we get plenty of flexibility such as support for a massive amount of drives, long GPUs, decent sized air coolers and most standard all in one water coolers will fit with ease. Stock airflow is decent from the 3x12cm fans and it is good to see a removable dust filter on those.

Summary: Fairly easy cable routing, plenty of storage options and support for high performance hardware. The Lian-Li PC-O6s is easy to build in, manufactured to a high standard and has the potential to look spectacular.

Gold Award


Available from Overclockers.co.uk

About Author

Stuart Davidson

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