NZXT
H7 Flow (2024)
$129.99
Released 2024
Best PC Cases · head-to-head
H7 Flow (2024) vs AIR 903 MAX
A sourced, side-by-side comparison. AIR 903 MAX is cheaper at $75. Every spec and price links to its source.
Montech
AIR 903 MAX
$75Cheaper
Released 2023-06
Which is better: the H7 Flow (2024) or AIR 903 MAX?
On the specs we track, they're closely matched. The AIR 903 MAX is the cheaper at $75.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | H7 Flow (2024) | AIR 903 MAX |
|---|---|---|
| US price | $129.99 | $75 |
| Brand | NZXT | Montech |
| Released | 2024 | 2023-06 |
| Form factor | Mid-Tower (ATX/mATX/ITX/E-ATX) | Mid-Tower (E-ATX/ATX/mATX/ITX) |
| Max GPU length (mm) | 410 | 400 |
| Max cooler height (mm) | 185 | 180 |
| Included fans | 3 x 120 mm F120Q (non-RGB variant) | 3 x 140 mm ARGB PWM (front) + 1 x 140 mm PWM (rear) |
| Radiator support | Front: 420 mm; Top: 360 mm; Rear: 140 mm | Front: 360/280/240/140/120 mm; Top: 360/280/240/140/120 mm |
| Side panel | Tempered Glass (dark tint on Black; ultra-clear on White) | Tempered Glass |
| Dimensions (mm) | 468 x 244 x 544 | 478 x 230 x 493 |
| Release | 2024 | 2023-06 |
Sources — H7 Flow (2024): nzxt.com (verified 2026-06-15). AIR 903 MAX: montechpc.com (verified 2026-06-15).
What's the difference between the H7 Flow (2024) and AIR 903 MAX?
Where the two actually differ on the specs we track (7 of 7). Matching specs are omitted.
- Form factor: H7 Flow (2024) Mid-Tower (ATX/mATX/ITX/E-ATX) vs AIR 903 MAX Mid-Tower (E-ATX/ATX/mATX/ITX)
- Max GPU length (mm): H7 Flow (2024) 410 vs AIR 903 MAX 400
- Max cooler height (mm): H7 Flow (2024) 185 vs AIR 903 MAX 180
- Included fans: H7 Flow (2024) 3 x 120 mm F120Q (non-RGB variant) vs AIR 903 MAX 3 x 140 mm ARGB PWM (front) + 1 x 140 mm PWM (rear)
- Radiator support: H7 Flow (2024) Front: 420 mm; Top: 360 mm; Rear: 140 mm vs AIR 903 MAX Front: 360/280/240/140/120 mm; Top: 360/280/240/140/120 mm
- Side panel: H7 Flow (2024) Tempered Glass (dark tint on Black; ultra-clear on White) vs AIR 903 MAX Tempered Glass
- Dimensions (mm): H7 Flow (2024) 468 x 244 x 544 vs AIR 903 MAX 478 x 230 x 493
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
H7 Flow (2024)
One whitelisted tester's quotes survived verification. Tom's Hardware tested this exact model (H7 Flow 2024) and rates it a solid, airflow-focused mid-tower that is very easy to build in, with room for up to 10 fans and large radiators, but flags conservative styling, no dust filters, and the need to add your own fans to exploit the improved airflow. A TechPowerUp review of the same case was dropped because only its intro page could be fetched, so none of its conclusion quotes could be verified. Numeric temp and noise results sit in image charts, so no measured values could be extracted verbatim. (1 sourced review, 1 lab-tested.)
Praised: Super easy to build in, with room for up to 10 fans and large radiators; Mesh-front, airflow-oriented design keeps thermals solid.
Flagged: Design feels a bit boring; NZXT played it safe with the update; Ships without enough fans; you must add your own to exploit the airflow; No dust filters.
AIR 903 MAX
Two hands-on testers (Tom's Hardware, TechPowerUp) both rate the Air 903 Max a standout budget airflow case, praising strong thermals and its sub-$80 price with four fans and a PWM/ARGB hub. Tom's measured a fairly loud 48.5 dBA peak and flagged PWM noise oscillation at 40-49%; TPU's gripes were cosmetic and cable-routing (blue USB-A ports, missing grommets). No RTINGS/PCMag coverage found. (1 sourced review, 1 lab-tested.)
Praised: Strong thermal/airflow performance for the price; Sub-$80 value with four included 140mm fans plus a PWM/ARGB hub; Broad hardware support (E-ATX boards, long GPUs, up to 6-7 drives, 360mm radiators).
Flagged: Fairly loud 48.5 dBA peak plus PWM noise oscillation at 40-49%; Cable-management gaps: missing grommets, hard to hide wires with air coolers; Cosmetic/quality nits: blue USB-A ports, non-unified front-panel header.