The chassis has a fairly open design and has room for a Micro-ATX, ATX or EATX sized motherboard as well as oversized graphics cards. Other than that, there's room for up to three 5.25" devices up to three 3.5" HDDs and four 2.5" SSDs.
The Black Owl will cost a whopping 469.99EUR! Quite a steep price tag, especially when you factor in that it doesn't come with any preinstalled cooling nor a I/O panel. In fact, the case even lacks pre-installed power and reset buttons, Phobya says they did this so users can personalize their case, for instance with the Phobya vandalism-proof bush buttons.
Also, the back features a concave shape with a space for either a 120 millimeter radiator or an identically sized fan. Right next to the eighth slot bezel, there are routing holes for water cooling tubes, which make it possible to reach a radiator outside the case. Below the slot bezels two power supply units can be installed. If one PSU is being put in place, there is a cover, which allows for mounting a pump or a reservoir.
The highlight of this case is definitely its versatile feature set for water cooling setups. In the top there is space for a quad radiator with up to four 120 millimeter fans. In the bottom area Phobya included a vertical bracket, which can be equipped with another triple radiator. This spot is compatible with 120mm as well as 140 millimeter fans. Radiators, as well as fans, can be tightened to the bracket from both sides, which allows for a wide variety of configurations. Close to the front there are mounting holes for easier installation of pumps and reservoirs.