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Phanteks ECLIPSE P400S ATX Mid Tower Case

( 5.0 Average / 5 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
Newegg $84.99 +$5.99 s/h In stock $90.98
Jet $98.97 In stock $98.97+
Amazon $84.99 +$20.21 s/h In stock $105.20
( 5 new from $84.99. Last updated 31 minutes ago. )
Newegg Marketplace $109.99 +FREE s/h In stock $109.99
* 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 & Combo Deals) History:


joshsmith91 19 points 7 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 16 points 3 months ago

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

Squarebox64 3 points 2 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 55 points 2 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