Lian Li A4-H2O V2 vs NZXT H7 Flow
The NZXT H7 Flow is a superior choice for most users seeking a high-performance, versatile build, while the Lian Li A4-H2O V2 is exclusively for those prioritizing extreme portability and a compact Mini-ITX SFF form factor.
AI Verdict
Lian Li A4-H2O V2 wins overall.
By the numbers
Performance
Pick A wins
The H7 Flow's larger size and superior cooling potential with two included fans and support for larger coolers and GPUs allows for significantly better thermal performance and the use of more powerful components.
Value for money
Pick A wins
Both cases are priced identically, but the H7 Flow offers more features, better component compatibility, and superior cooling out of the box, providing greater value for the average builder.
Power efficiency
Tie
Power efficiency is determined by the components housed within the case, not the case itself, making this a tie.
Future-proofing
Pick A wins
The H7 Flow's support for larger motherboards (E-ATX, ATX), longer GPUs (400mm), and standard ATX PSUs offers much greater flexibility for future upgrades compared to the A4-H2O V2's strict Mini-ITX and SFX PSU limitations.
Pick A if…
- • You want to build a high-performance gaming or workstation PC with excellent cooling.
- • You need ample space for multiple storage drives (4x 2.5", 2x 3.5") and larger components.
- • You prefer a standard ATX power supply and a wider range of motherboard options.
Pick B if…
- • You absolutely require the smallest possible footprint for a portable Mini-ITX SFF build.
- • You are building a system with a compact GPU (max 322mm) and an SFX power supply.
- • You prioritize an aluminum side panel and a minimalist aesthetic for a small form factor.
Specs side-by-side
| Spec | A: A4-H2O V2 | B: H7 Flow |
|---|---|---|
| Form factor | Mini-ITX SFF | Mid-Tower |
| Max GPU length | 322mm | 400mm |
| Max cooler height | 53mm | 185mm |
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Common questions
Lian Li A4-H2O V2 vs NZXT H7 Flow — which should I buy?+
The NZXT H7 Flow is a superior choice for most users seeking a high-performance, versatile build, while the Lian Li A4-H2O V2 is exclusively for those prioritizing extreme portability and a compact Mini-ITX SFF form factor.
When does Lian Li A4-H2O V2 win?+
You want to build a high-performance gaming or workstation PC with excellent cooling. You need ample space for multiple storage drives (4x 2.5", 2x 3.5") and larger components. You prefer a standard ATX power supply and a wider range of motherboard options.
When does NZXT H7 Flow win?+
You absolutely require the smallest possible footprint for a portable Mini-ITX SFF build. You are building a system with a compact GPU (max 322mm) and an SFX power supply. You prioritize an aluminum side panel and a minimalist aesthetic for a small form factor.
Are the prices live or MSRP?+
MSRP is shown as a reference baseline. Click either product card to see live retailer pricing — we pull current prices from Amazon, Newegg, Best Buy and other retailers on demand, cached for 30 days. Prices localize automatically for US, Canada, and India.