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Case

Phanteks Eclipse P400A ATX Mid Tower Case

(11 Ratings, 4.7 Average)

Prices

Merchant Base Promo Shipping Tax Availability Total
$129.99 In stock $129.99+ Buy
( 1 new from $129.99 . Last updated 6 minutes ago. )
$129.99 In stock $129.99+ Buy

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Specifications

Manufacturer

Phanteks

Part #

  • PH-EC400ATG_BK
  • PH-EC400ATG_BK01

Manufacturer

Phanteks

Type

ATX Mid Tower

Color

Black

Power Supply

None

Side Panel Window

Tempered Glass

Power Supply Shroud

Yes

Front Panel USB

USB 3.2 Gen 1 Type-A

Motherboard Form Factor

  • ATX
  • Micro ATX
  • Mini ITX
  • EATX

Full-Height Expansion Slots

7

Half-Height Expansion Slots

0

Maximum Video Card Length

  • 280 mm / 11.024" With Drive Cages
  • 420 mm / 16.535" Without Drive Cages

Dimensions

  • 470 mm x 210 mm x 465 mm
  • 18.504" x 8.268" x 18.307"

Internal 2.5" Bays

2

Internal 3.5" Bays

2

Volume

  • 45.895 L
  • 1.621 ft³

Price History

    Reviews

    gravef1ghter
    • 17 points
    • 7 months ago

    from completed build A Mortgage Payment

    Sleek, sexy and great bang for the buck. My only gripe and I was hoping the airflow issue was addressed with the new front panel, regardless of what Steve over at GN said, was exactly that. Airflow. If a front-mounted 360mm AIO is having some difficulty keeping CPU temps down then maybe they haven't. Still, it's nothing drastic and it works fine. I'm just saying, it could be better. I'm going to try some IC Diamond and Thermal Grizzly next to see what I can get. Failing that, we're going to a push/pull on the rad. I will update in the future how that goes.

    Update: The push/pull config did make a difference in airflow. I'm showing a 5C drop at idle and package temp drop of 7C. Not too bad.

    splurk
    • 15 points
    • 5 months ago

    This is a lovely looking case and well laid out inside. Building it up was easy. There is an add-on bracket you can buy to change how the graphics card is mounted and there is plenty of room for a large air cooler or AIO, but the AIO can only be front mounted as it will hit the heatsink and memory. The full mesh grille at the front lets plenty of air in. I do have concerns with the case mounted USB sockets on the top. There is nothing to stop debris or dust building up in them when they are not in use so a short circuit could occur sometime in the future.

    vertical_mammal
    • 8 points
    • 4 months ago

    Really dig this case. Would love if it was 2-3cm bigger in every dimension. That would space the rear exhaust fan further from the IO shroud of the motherboard and create room for a top-mounted radiator. Besides that I will say that the metal is quite thin, but at this price point I'm not complaining too much. It's not an issue, just feels cheap when you work with it. Looks just fine once it's built and running, although fit and finish is far from perfect. There are a few places where plastic parts don't line up perfectly on my copy when they are meant to, but nothing you can really notice without getting up close and looking intentionally for imperfections.

    silencwr
    • 6 points
    • 8 days ago

    from completed build RGB Quacker - First PC Build!

    Airflow is great, plenty of space to build, great build quality yet not too heavy. 5 stars :)

    cgarrisonjr
    • 5 points
    • 4 months ago

    from completed build Little Ripper_V1

    Ive owned a couple other pc cases but this has become my new favorite, already planning a new build to try out in the white version, I may even opt for the digital version next time.

    TrollyTran
    • 5 points
    • 29 days ago

    from completed build 2020 Gaming PC Build

    Made the overall building experience pretty simple and came with really good cable management. It was a little difficult to fit the cables through under the motherboard, but it was eventually completed. Really good airflow as well. I was worried because the CPU cooler clearance was exactly the height of the NH-D15S, but there is still plenty of room between the cooler and the side panel.

    juanejot
    • 4 points
    • 3 months ago

    from completed build Hackin2020sh

    This one may come down to a Greg Salazar vs. Steve Burke death match, but I gotta agree with Tech Jesus on this one: VERY cool (even overclocking a 9700K to 5.0GHz & pushing it up to 85° cools right down precipitously THE MOMENT the load is cut off, down within seconds to 40°~ish. That’s with Gigabyte stock Smart Fan 5 settings, and a total of 4 case fans (two stock DC fans, one of which moved to front bottom, other left as back outflow + two PWM MetallicGear Skiron 120s at top front) & a dual-PWM-fanned Arctic Freezer 34 eSports Duo air cooler. Meanwhile, a high-power Sapphire Pulse RX 580 8GB at full load never got above 70° at highest load! So, I like the P400 looks, the front mesh holes are NOT too small to get air inside (Sorry, Greg!), and until/unless I get a hotter CPU that needs a taller (than 160mm) cooler, I am happy with this case!

    prankster
    • 4 points
    • 9 days ago

    from completed build Lower Mid-Range Build

    For those looking for great air circulation and clean organization this is a great case. If you want a more compact case take a look at the P300A ($70 in May 2020).

    J__fern
    • 1 point
    • 2 months ago

    The overall design and case is great. I was looking for something with a sleek design and a mesh front for great airflow. It does just that. For it's price I think it's a solid case. I did have issues with the back panel. This case forces you to cable manage as there isn't much room for bulky cabling.

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