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Phanteks Eclipse P400A Airflow D-RGB Tempered Glass White

PH-EC400ATG_DWT01 | Phanteks

This product has been discontinued

On sale! (normally $149) The P400A breathes performance and is packed with features including a spacious open interior, extensive storage options, and integrated Digital-RGB solution. Offering more performance out of the box, the P400A supports upgrades like vertical GPU placement and up to 8x HDD positions.


Strength and Performance

Full-Metal Mesh Front Panel

The single-piece front panel is made from an Ultra-Fine Steel Mesh. This mesh catches dust, adds structure, strength, and is part of the P400A's seamless design.

Improved Airflow

The P400 A chassis has improved airflow to keep your system cool. The optimized High Air-flow Mesh Front Design offers maximum cooling performance.

P400 A Models

Phanteks Eclipse P400A Airflow D-RGB Tempered Glass Case White Feature 1

Integrated Digital-RGB Lighting and Expansion

The integrated Digital-RGB lighting can be easily controlled with the Mode noise and performance with the push of a button. The Digital-RGB Controller can also be expanded and synced to a compatible motherboard.

Cooling Capacity

The Eclipse P400A has a range of possible fan and radiator locations up to 360mm for both 120mm and 140mm fans.

Phanteks Eclipse P400A Airflow D-RGB Tempered Glass Case White Feature 4

Storage Capacity

The P400A supports 2x 3.5" HDDs and 2x 2.5" SDDs out of the box with easy to use trays and vibration dampening. There is space for an additional 4x drives with the optional PH-HDDKT_02 brackets.


Model Specific

P400A Digital-RGB Controller

Front I /O 2 x USB 3.0, Mic, Headphone, Power Button, Reset Button, D-RGB Mode, D-RGB Colour
Included Accessories 3 x 120 mm Digital-RGB Phanteks Case Fans

Case Specifications

Model Number PH-EC400ATG-DWT01
Dimension (WxHxD) 210 mm x 465 mm x 470 mm
8.3 in x 18.3 in x 18.5 in
Form Factor Mid-Tower
Materials Powder Coated Steel Chassis
Tempered Glass Side Panel
MB Support ATX, Micro-ATX, Mini-ITX, E-ATX (Up to 272 mm Wide If Optional HDD Trays are Used)
Side Window Yes, Tempered Glass
Colour Glacier White
Warranty 5 Years

PCI Slots & Drive Bays

PCI Slots 7
Internal 3.5" 2 (2 Included)
Internal 2.5" 2 (2 Included)


Front 3 x 120 mm / 2 x 140 mm
Top 2 x 120 mm / 2 x 140 mm
Rear 1 x 120 mm


Front 120 mm - Up to 360 mm Radiator Space / 140 mm - 280 mm Radiator Space
Rear 120 mm - 120 mm Radiator Space


CPU Cooler 160 mm (6.3 in)
Graphics Card Length 420 mm (16.7 in)
280 mm (11.0) When Optional HDD Brackets Installed
PSU (Including Cables) 270 mm (10.7 in)


Net Weight 7 KG
Gross Weight 8 KG
Backed by a 5-year Phanteks warranty.

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