NZXT H6 Flow (compact dual-chamber)
A compact dual-chamber case, the H6 Flow's signature is its angled front fans blowing straight at the GPU, with ATX-to-ITX support, up to 365 mm of GPU clearance, and top radiators to 360 mm. It is a tidy showcase build for airflow-minded owners. Avoid it for tall 165 mm-plus air coolers (163 mm limit) or 420 mm radiators.
Scores
BreakdownHideOverall63±3Caliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions.
Scores
BreakdownHideCaliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions.
The ± band on the overall score reflects sourcing confidence — wider when fewer specs are verified.
How each score is computed: our scoring methodology.
Specifications
| Spec | Value | Verification |
|---|---|---|
| form factor support | ATX, Micro-ATX, itxSourced | Sourced |
| max GPU length (mm) | 365Sourced | Sourced |
| max cooler height (mm) | 163Sourced | Sourced |
| radiator support | top up to 360mm / rear 120mmSourced | Sourced |
| radiator support (mm) | 120, 240, 360Sourced | Sourced |
5/5 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.
Verdict
Best for
- Compact dual-chamber showcase with angled-front fans blowing straight at the GPU
Who should skip this
- Tall 165mm+ air coolers; 420mm radiators
Known limitations
- NZXT lists top radiators up to 360mm; 280mm not listed on the spec sheet
Where to buy
List price $110
Prices are a guide and can change — confirm the current price on the retailer's site before buying.
Prices last checked Jun 14, 2026 — retailer prices change often, so click through for the current price.
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Standards
Form factors & standards — interchangeable across compatible builds, not a platform lock-in.
Compatibility
Built around ATX. Make sure the rest of your build uses the same platform before you buy — mismatched sockets, mounts or standards are the most common return reason. Check it in the builder →
Upgrade path
Outgrow it and the Lian Li Lancool III RGB is the natural next step up in cases. See it →