The interior of the case is very clean. It’s not only designed to save production cost, but it is also designed to be very practical in use. There are no 5.25″ drive bays in the case and there is also no support for mounting HDDs in the front of the case as supported in the P400.
There are no cable routing grommets in the case. By angling the motherboard area and cable routing areas at a hard 90-degree angle, Phanteks was able to avoid the issue of having ugly holes showing up all over the case.
The back of the case is what I like to call “Typical Phanteks” layout. There are a couple mounting locations for SSDs, and the case ships with a single SSD mount. Given the rise in the use of M.2 SSDs, just having one SSD mount I feel is enough at this price point. The case also has ample cable tie down locations allowing you to pull off some great looking cable runs.
The front panel on the case can be removed by pulling from the bottom. Another interesting design aspect of the case is the placement of the HDD cage in the P300. Unlike any other Phanteks case, the HDDs can be accessed from the front in the P300. The case does have the same HDD caddy design as seen in all other Phanteks cases in the market.
The accessory box includes screws and zip ties to help secure your hardware and cables to the case. An instruction manual is also included in the event you need any help.