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Specifications
Manufacturer
Phanteks
Model
Eclipse P400A Digital
Part #
- PH-EC400ATG_DBK
- PH-EC400ATG_ DBK01
Manufacturer
Phanteks
Type
ATX Mid Tower
Color
Black
Power Supply
None
Side Panel Window
Tempered Glass
Power Supply Shroud
Yes
Front Panel USB
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

- 21 points
- 3 months ago
from completed build "Monochromatic" - 2nd Personal Build ($2.5K CAD/$1.9K USD)
Good airflow, amazing cable management, easy to build in. Unfortunately it doesn't come with a fan hub with everything pre-wired to it like the H510i and H510 Elite does but the airflow and price point it's at compared to those swayed me towards Phanteks.
Top radiator support would make this the perfect case and would blow the Meshify C out of the water, but I specifically went with this because of the front panel look but previous P400 models never had it and I don't think it'd be possible without a new series of cases.
Realistically though, a front USB-C port, included vertical GPU mount, and sound dampening material (P400SA maybe?) would really make Fractal Design sweat on the next refresh of the P series.

- 7 points
- 4 days ago
from completed build Taming The Devil
Case was way bigger than expected, but not too much of a problem. Really sleek design and amazing airflow. The fine mesh is something other cases should take note of. Cable management was fairly easy in this too for a first time builder.
Compatible Parts
- View Compatible CPU Coolers
- View Compatible Fan Controllers
- View Compatible Motherboards
- View Compatible Optical Drives
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- View Compatible Storage
- View Compatible Video Cards
- View Compatible Wired Network Adapters
- View Compatible Wireless Network Adapters