To gain access to the main chamber of the Corsair 2500D Airflow, simply pull the covers off the enclosure. The interior of the case sports a motherboard section which has well-placed cutouts for cable management. In the rear, the general layout is exactly what we have come to expect from modern dual-chamber chassis. That said, Corsair is clearly focusing on the less intricate, yet functional aesthetic. There are no cable channels, pre-installed Velcro strips or a center cover plate, in order to provide as much storage as possible. Instead, you get lots of room and specific placement of classic hooks to secure zip ties to.
Both the floor and ceiling of the 2500 series are dedicated to cooling. These allow for three 120, two 140 mm fans, or radiators of up to 360 mm in size. In the top, as previously mentioned, you will have enough room for extreme setups of the same size, while the distance to the motherboard on the bottom is slightly less, yet still much more than we see with other cases of this type. As this is the Airflow variant, you may also install two 120 or 140 mm fans in the front of the case. Alternatively, this area can hold a third radiator of up to 280 mm in size as well.
In the rear, at the top, there is another fan/AIO placement possibility. Thanks to the elongated mounting holes, you have some flexibility in terms of placement height as well. Below that, you can find the four expansion slots. There is still plenty of clearance below these, which means that even with cooling installed on the floor of the 2500D Airflow, the motherboard should still remain fully accessible.
The last position to install fans or liquid cooling can be found on the side of the case. This position is limited to two 120 mm fans or a 240 mm radiator, but Corsair has designed it in a way that allows for the frame to be rotated. This gives you all the flexibility you need to install unique liquid cooling like push/pull or thick radiators without having to compromise on the length of your GPU for example.
The 3.5" hard drive cage is pretty simple when viewed from the inside. The two trays are meant to be pulled out the back of the chassis. Below that is a simple yet functional PSU bay. As you can see, Corsair has an SFX frame pre-installed here, but you may remove it to use a full size ATX variant instead.
Getting to the two 2.5" trays in the front of the case is a bit of work as it these are placed on the front metal cover. If you have an elaborate cooling setup in the front and side of the case, retaining access to these may be a bit tricky. Nonetheless, it is nice to see Corsair use all the surface area within the case as much as possible.
As the Corsair 2500D Airflow ships with two USB-A 3.0 ports, you will find a singular lead for these inside the case. On top of that, there are the usual USB-C and audio ports. Last but not least, a unified front panel plug takes out all the complexity in connecting LED, reset and power.