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Phanteks - ECLIPSE P400S TEMPERED GLASS ATX Mid Tower Case

( 4.7 Average / 29 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


Merchant Base Promo Shipping Tax Availability Total
Newegg Business $79.99 +FREE s/h $79.99
Amazon $89.99 Free two-day shipping with Amazon Prime In stock $89.99
( 6 new from $89.99. Last updated 9 hours ago. )
Newegg $89.99 +$7.99 s/h In stock $97.98
* Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Price History (Excluding Tax) History:


NeonJaguars 7 points 20 months ago

Easy to build in, sturdy quality, beautiful tempered glass side panel. The RGB light strip, soundproofing, and the added fans are worth the $10 premium. Would highly recommend to any 1st time or experienced builder.

wAFFLES2310 38 points 18 months ago
from completed build wAFFLES Rig

I love the aesthetics, the tempered glass, and the RGB lighting, but the case definitely trades function for form. The thermals are less than ideal, mostly because the front intakes are rather small. I make regular use of the built in fan controller to turn the fans up in order to keep my 1080 Ti cool during heavy gaming sessions, it is incredibly convenient having my three chassis fans tied into it, although it is worth noting that the fan controller only has three speeds which cannot be modified. Given how convenient the fan controller is for me, I suppose the worse thermal performance wasn't a total oversight, although I may be simply doing away with the front panel someday in favor of a large magnetic dust filter.

jappyboy 17 points 18 months ago
from completed build Arctic Frost (First gaming PC)

Great case to build in, Just got confused when I didn't see all the motherboard pins I needed. (JUST CONNECT THE SATA POWER TO THE AVAILABLE SATA WIRE PORT IN THE CABLE MANAGEMENT STRAP) also nice rgb strip that is included

lavi5h 27 points 18 months ago
from completed build My Final Form (...for now)

Incredible looks/aesthetics. Fantastic lights (included). Not too heavy.

My case made my psu make a low humming noise after the build was complete. After some trial/error, realised the tempered glass window - and how you adjust it's 4 screws - makes a difference.

Deduction for cabinet build issue, but I fixed it and everything else is great,

nlukic95 12 points 17 months ago
from completed build Mid 2017 Budget Build

This case is beautiful. Extra magnetic rgb strip with a built in case controller for it as well as three pwm fans is a great touch. the glass is stunning and the PSU shroud is built well to cover a nest of cables beneath it. My only issue is that it could have used a grommet on the psu shroud to feed a vga psu cable.

I had gotten the silent edition, but opted to place the mesh dust filters over the solid sound proof-lined panels as I found heat trapping to be an issue with them. I you use a front 240-280mm AIO liquid option then leaving the panels on is not a big deal. The mesh covers are still magnetic and keep light spill down so that the ceiling in your room doesnt look like a rave

NeonJaguars 26 points 17 months ago
from completed build Outrun Build - Updated

Great case. Easy to build in, and is of great build quality. Would recommend.

FireCracker200225 23 points 17 months ago
from completed build White Fang

This is the absolutes best looking, cable management case, etc. ever!!!! 6/5 if possible.

MarloStanfield 9 points 15 months ago

Case:It looks really nice with its led strips(i installed the second one too) in combination with fans' and motherboard's leds.It's not 100% silent but having it next to me on the desk doesn't really bother me.Air flow seems really good but i guess if someone takes out the front dust filter things will be even better since front air intakes are small.Glass panel needs to be placed somewhere soft cause it can be scratched or even crack really easily.Ssd sockets on the other side of the case are really good idea

ImGodLy1 9 points 15 months ago
from completed build The even more broke uni student.

Very nice case I already started putting badges and my pro era sticker on it

It wasn't that easy for me to build in but I have large hands and it's my first build so probably my fault.

sonbynano 19 points 14 months ago
from completed build Mr. Freeze (my first build)

Was originally going to purchase the NZXT S340 case, seemed like it's the case to go for, especially for first time builders. I was about to buy until I took one more look and read people's recommendations for Mid Towers, and the P400 came up a lot. Went on Newegg, found the white P400S. It had a mail in rebate, tempered glass, RGB lighting in the case, plus a RBG strip, it had great reviews, dust filters, sound proof panels, and it looked sexy. I love this case.