Phanteks Eclipse P400A Black Case

Phanteks Eclipse P400A Black

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
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.

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