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Phanteks - ECLIPSE P400 TEMPERED GLASS ATX Mid Tower Case

( 4.9 Average / 15 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

11.02" (280mm) With Drive Cages
15.55" (395mm) Without Drive Cages

Completed Builds Using This Part

See All Completed Builds


Merchant Base Promo Shipping Tax Availability Total
Amazon $77.99 Free two-day shipping with Amazon Prime In stock $77.99
( 5 new from $77.99. Last updated 2 hours ago. )
Newegg $77.99 +FREE s/h In stock $77.99
Newegg Business $78.49 +FREE s/h $78.49
* 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:


claudiuskt 32 points 14 months ago

Ain't this case a beauty to behold. The tempered glass is simply stunning and the short RGB strip included is a nice bonus. For those looking for simplicity and clean-looking case, I would definitely recommend this case.

Cable management was super easy with a lot of room to work with. Airflow could be improved though, as the front panel has relatively small intake from top and bottom openings only. Stock fans that came with it are pretty quiet and do their jobs well.

Fr0st_Byte 5 points 12 months ago
from completed build $2200 Gaming Machine

Worth much more than the $90 you pay for it. Absolutely fantastic case by Phanteks. I highly recommend this case for anyone making a nice looking rig with plenty of build options. The magnetic RGB strip is a great addition. I was expecting another cheap adhesive solution, but was very happy to see magnetic. The colors are great, too. PSU basement is nice, and cable-management is super easy.

enzorex44 16 points 11 months ago

GREAT case for its price! Easy build and were well thought case! I recommend it for first time builders too

DawnOfTy 13 points 10 months ago
from completed build "Mid Papi"

Great cooling, airflow, and thank God for the dust filters. Magnetic and slotted all around. Oh yea and this is the TG edition, so the smoked tempered glass looks amazing with this build. I really wouldn't chang anything on this case. Great deal for under $100

dhrose20 13 points 7 months ago
from completed build NHF Team Streamer Setup

Phanteks makes some of the best cases. 2 included rgb strips. Plenty of space. Psu shroud. Fully customizable. Seemed hard to get used to at first...but again I was a first timer. After a hour, I knew this case in and out. Real Simple. Already has wires pre-routed. Cable management velcro straps. Will say that the included screws were less than ideal. I had about 5 screws that were almost stripped upon arrival. Luckily I had purchased a 45pc Rosewill toolkit that had extra screws of the same size.

NapalmInDMorn 25 points 6 months ago
from completed build Black Box II

I had one prerequisite for a case: Tempered glass. This case delivers that and more. Aside from the meh included fans, everything included with this case is high quality, and the RGB that I adapted to my MoBo was icing on the cake.

yazzfloot 32 points 6 months ago
from completed build Purple Haze

One thing to note, this case is a little shorter than most, so make sure you have room to clear your radiator AND fans up top, because my H100i V2 sure as heck couldn't. So I ended up front-mounting them and moving my case fans up top. Also, the case fans are pretty loud. Other than that, it's AMAZING!

Malus_Lupus32 7 points 5 months ago
from completed build Lupine V.1

Beautiful and sleek case with a decent amount of space for components, good cable management, and some pretty lights.

Blackspikes 17 points 4 months ago
from completed build Gaming build for a friend V2

This was an awesome case in basically every way. First of all it looks amazing, it is the combination of the two big fads right now (Tempered glass and RGB) but no one can deny that it looks stunning. Cable management is also great, plenty of routing holes as well as lots of space on the other side of the case. SSD mounts are easy to use, and the PSU shroud looks great. Highly highly recommend this case.

Destructive55AZ 17 points 4 months ago
from completed build First build

Stunning case, nice add ins, RGB, incredible, and I mean incredible cable managing, even better than the S340. Great price and incredible looks. At this price point there is no other case.