A Closer Look - Outside

Out of the box, the H9 Flow is unsurprisingly tall and bulky. While it is still considered a mid-tower, the case is wider than most enclosures of this type with added height as well. The glass around the case is nice and clear with the white wrap lining up nicely. The glass corner is cut at a 45 degree angle, which really completes the seamless look of the chassis.


Looking at the case from the front your eye is clearly drawn towards the glass and the outer edge where it meets the side panel. Any hardware you will install here will be clearly visible. Another nice design element is the subtle NZXT logo on the bottom of the front glass panel.


Looking at the rear of the H9 Flow, it becomes clear that the enclosure employs a sandwich design where storage expansion slots and the PSU are located behind the motherboard tray. The seven expansion slots are completely solid and flush, as such any air flow from the floor of the chassis will reach the GPU and components above, even if there is a flow of air coming from the front of the enclosure. Above that, you will find a fixed 120 mm exhaust fan next to the full sized PSU bay, with two mounting hole sets. In the very top, there is plenty of room to support liquid cooling hardware. When you look closer, the top panel has a little recessed handle for convenience.


Looking at the main side of the H9 Flow, you can see every part of the interior, consisting of the motherboard tray, openings, covers and fans. On the opposite, instead of a solid panel with venting for the side fans, NZXT has perforated the complete area and embedded a white dust filter on it. This could make sense, as the layout of the chassis needs openings for the fans and the PSU anyways, so expanding that benefit to the rest of this aspect of the chassis feels like the right move by NZXT.


The same design aspect is employed on the top panel with complete perforation and an embedded white magnetic dust filter. Removing the panel is tool-free and reveals a removable mounting frame for a 360 mm AIO or three 120 mm / two 140 mm fans. In terms of IO, the N9 Flow provides a combo audio jack, USB-C port as well as two purple USB 3.0 connectors. There is no reset button or HDD activity LED - something that NZXT eliminated with their H-series cases a long time ago.


Looking at the underside of the H9 Flow, there is another white mesh filter which you may pull out from the main side of the case, which is the best possible setup. As you can see, NZXT has put a lot of effort to keep structure components white, while only rivets, screws and stand-offs are black.