Case Interior and Storage
The interior of the Phanteks Eclipse P400 is very similar to other Phanteks cases which take a minimalist approach to the interior design. By this I mean you only get what you need leaving you more room to install the stuff you want.
Longer video cards up to 295mm in length can be installed in the P400 provided you are not using any of the interior 3.5” drive trays. Most watercooling enthusiasts will use the area normally reserved for hard drives to install their watercooling gear which will also limit the length of video card you can install.
The back of the case allows you access to the lower 3.5” drive rack and dual tray mounted 2.5” SSD trays. You will find two grommets for cable routing and over an inch of space behind the motherboard tray for cable management.
Despite lacking an external 5.25” drive bay the Phanteks P400 has plenty of storage options. The main HDD rack is located under the case divider and supports two drives in pull out plastic trays.
The rack is also removable to better support watercooling items like pumps and reservoirs. The slots seen in the bottom of the case allow you to position the included pump mounting bracket however you need.
Not counting the two 3.5” drives located in the basement of the case you can install up to five more next to the motherboard using a tray style bracket that is not included with the P400. For most users what is provided with the P400 is more than adequate and allows Phanteks to offer this case at a lower price and still give you a great value.
RGB lights are a big part of the current modern PC landscape and what was once added some custom lights to your case has transformed into lighting integrations with motherboard controllers and gaming accessories.
The P400 comes with two 4-pin RGB light strips. You will find one at the bottom of the front panel while the other comes as an accessory and can be mounted anywhere with its magnetic base.
These strips connect back to a built in controller or can be connected directly to any ASUS or MSI motherboard and controlled using their lighting software. While maybe not fully supported I suspect you can use any RGB controller including those from Gigabyte or any off the shelf version you can by online.