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Phanteks - ECLIPSE P400S ATX Mid Tower Case

( 4.9 Average / 12 Ratings )






Part #





ATX Mid Tower

Includes Power Supply


Internal 2.5" Bays


Internal 3.5" Bays


Motherboard Compatibility

ATX, EATX, Micro ATX, Mini ITX

Front Panel USB 3.0 Ports


Maximum Video Card Length

280 mm / 11.024" With Drive Cages
395 mm / 15.551" Without Drive Cages

Completed Builds Using This Part

See All Completed Builds


Prices for this part are not available.

Price History (Excluding Tax) History:


joshsmith91 20 points 33 months ago
from completed build Icebox Aurora

For its price point, this case excels in value, it is beautiful and is actually a great case for people who are new to building (like me)

Pros: + Roomy enough for full size video cards + Cable management is easy with Velcro ties, lots of tie points and space for routing as well as tidy rubberised holes + Phanteks RGB strips are easy to plug in and display 10 different colours + Sound insulation on front and side panels + Easy to take panels off and put on (the screws don't fall off) + Drives are easy to move and have rubberised mounts to reduce noise

Cons: - No disk drive bays - Mildly restricted air flow on the front - Smaller size means no crazy huge radiators on the ceiling - Stock fans are below par in quality

RoccoAK 18 points 29 months ago

I now love this case over the NZXT S340. Easier to build in and the build quality is so much better.

Squarebox64 4 points 29 months ago
from completed build Adam Bomb

It's pretty cheap for how good it is with a power supply shroud, velcro straps for cable management, and LEDs that u can change

rowanhirst_82 73 points 29 months ago
from completed build Eclipse 2K16

Everything I expected. Lots of room and the front LED is very even and professional, also very quiet

NourAyad 3 points 26 months ago
from completed build White Rabbit - First PC Build!

This case looks gorgeous, the built in LEDs and controller are great!. The fan controller is also really nice, and the 2 fans come preattached. Has plenty of room to work with, and the HDD cage at the bottom is removable, made installing the PSU and wiring a lot easier. The sound dampening material is also great, build runs pretty quiet. Came with preinstalled standoffs, and some cable management already done on the headers and such. Just an amazing case for novice builders!

ziggurat666 38 points 25 months ago

Okay, I SCREWED UP... lol. For a NON E-ATX board, this case would work amazing. With the E-ATX... a tad tight. My error but made it work. the SATA powered Fan controller is a lovely touch, and the front LED's are just understated enough to make it sophisticated and sexy.

Chronofrost001 10 points 24 months ago
from completed build Medium White Beast

Fantastic case, the front usb 3.0 is great for those times you have a thumb drive and don't want to go digging for the base of the case. The white paint coating is great and does not show finger prints at all. The sound dampening is noticeable but if the case is at full price I am not sure it is worth it if you don't need the slight db reduction.

The toolless HD bay worked like a charm and the slide in SSD mounts also worked great.

The included Velcro cable straps were fantastic and I only ended up needing one more once the entire build was done. I would recommend this case to anyone who wants to build their own. With the number of options between colours, silent/standard and tempered glass/windowed/solid sided there is something for everyone.

HeadphoneActor21 20 points 23 months ago

Absolutely beautiful case!!! I honestly couldn't ask for more. It's a sleek white with a side panel so I can see my components, and an amazing RGB set up. So hidden gems with this case are the cable set up in the back. More specifically how the fan connectors have extra slots for more fans you might buy. These fans can all be hooked up together and contorlled by one button on the front of the case. Also the bottom of the case has plenty of open space for any power cords you want to hide away.

dhess34 8 points 12 months ago

Tons of space, cable management's a snap. Looks striking.

BattleBRN 3 points 2 months ago
from completed build First build for Oculus

I was gifted this tower for a first build and astetically it fit in perfectly with my plan. The SSDs aren’t displayed however (they’re mounted on the back of the divider) which could be good or bad depending on whether or not you wanted to have them out in the open. No crazy bells or whistles on this case but a clean look with very little clutter was exactly what I was looking for.