The clearance options inside a computer chassis are essential to system builders as it helps to establish whether a piece of hardware is compatible.

CPU Cooler

For the CPU Cooler there is approximately 170mm for the total height. Our CPU cooler – Cooler Master Hyper 212 EVO is 159mm in height and therefore fits inside this case without any difficulties whatsoever. The total clearance means that bigger solutions which are 160-170mm will fit inside this case too (Noctua NH-D15, Thermalright Silver Arrow).

Graphics Card

With no obvious collisions towards the front of PC-O8 there is a huge amount of space for multi-GPU configurations. There is up to 370mm for the graphics card – covering anything currently on the market. As there is nothing at the front or bottom of the chassis AMD CrossfireX/NVIDIA SLI is fully supported.

Cable Management

As shown on the installation page, the bulk of cables sit within the secondary chamber and we therefore have an abundance of space behind the motherboard tray to arrange the cable management.

Water Cooling

Water Cooling is PC-O8’s forte and as such there are various locations for housing different sized radiators. The rear can house a 120mm radiator.


At the top there is allocation for installing a 240mm radiator with up to 54mm between the top and the motherboard. The radiator/fan combo are installed into the adapter at the top of the chassis.


While at the front, the trio of cooling fans can be detached to make way for a 360mm, 240mm or 120mm unit. Sadly, our oversized Phobya G-Charger 360 wouldn't squeeze into either side of the mounting plate due to the ends being too bulky.