Phanteks Eclipse P400A Case

Phanteks Eclipse P400A

Brand
Phanteks
Model
Eclipse P400A

Mainstream airflow mid‑tower (2019) with ultra‑fine mesh, 420 mm GPU clearance and 360 mm front‑rad support; a budget‑friendly ATX case for cool, clean builds.

TierMainstream?GixCore tierWhat a part was built to do — not what it costs.EntryBudgetMainstreamHigh endEnthusiastFlagship A part can be cheap because it is an ageing flagship, or because it is a current entry-level model. The tier tells you which.
ReleasedAug 2019
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Form factorATX, mATX, Mini-ITX
ColorBlack
Tempered glassYes
GixCore Editorial

Product overview

Launched on August 6, 2019, the Eclipse P400A is Phanteks’ mesh-front update to the Eclipse P-series, evolving the original P400 with an ultra‑fine performance mesh and tempered‑glass side panel. A mainstream airflow mid‑tower, it exists to deliver strong thermals and clean looks at an accessible price. It fits ATX/mATX/ITX and narrow E‑ATX (up to 272 mm), clears GPUs up to 420 mm and tower coolers to 160 mm, and supports 280/360 mm front radiators (no top radiator). The non‑RGB variant includes two 120 mm fans and a 3‑speed fan controller, with optional vertical GPU via PH‑VGPUKT_02. Notable for its high GPU clearance in a compact footprint. Later succeeded by the Eclipse G400A; official EOL for P400A is not stated.

Best for
  • airflow builds
  • budget builds
  • water cooling/radiators
  • high GPU clearance
Official product specifications

Specifications

Form factor
ATX, mATX, Mini-ITX
Color
Black
Tempered glass
Yes
Dimentions
8.30 x 18.30 x 18.50 in
Weight
15.43 lb
I O Ports
2x USB 3.0, Mic, Headphone, Power Button, Reset, 3-Speed Fan Controller
Expansion Slots
7
Pairing fit

Compatible Motherboards

Compatible options ranked for this part's performance class.

Pairing fit

Compatible Power supplies

Compatible options ranked for this part's performance class.