Sized Down. Powered Up. The NZXT H3 Flow (2025) redefines what is possible in a compact chassis. Engineered for enthusiasts who demand high performance without the bulk, this Micro-ATX case combines a space-efficient footprint with the cooling capabilities and hardware support typically reserved for larger mid-towers. Finished in a sleek, all-black aesthetic with tinted tempered glass, it provides a premium backdrop for your components.
Key Features:
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Unrestricted High-Airflow Design: The H3 Flow is built to breathe. It features ultra-fine perforated mesh panels on the front, top, and PSU shroud to pull in massive amounts of cool air. The unique bottom-chamber layout allows intake fans to push air directly into the GPU, ensuring critical components stay cool under load.
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Next-Gen “Back-Connect” Ready: Future-proof your build with support for rear-connector motherboards (such as ASUS BTF and MSI Project Zero). This innovative standard hides connectors behind the motherboard tray, leaving the main chamber completely free of visible cables for the cleanest look possible.
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Massive Component Compatibility: Don’t compromise on power. The H3 Flow supports full-length graphics cards up to 377mm, allowing you to fit the latest high-end GPUs effortlessly. It also accommodates CPU air coolers up to 170mm in height and standard ATX power supplies up to 185mm.
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Superior Cooling Potential:
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Fan Support: Mount up to 7 fans total. (Front: 2x 120/140mm, Top: 2x 120/140mm, Bottom: 2x 120mm, Rear: 1x 120mm).
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Radiator Support: Ready for liquid cooling with support for up to a 280mm radiator in the front and a 240mm radiator on the top.
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Includes 1x F120Q (Case Version) High-Airflow Rear Fan.
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Tool-Free & Easy to Build: Accessing your components is seamless with tool-free removal for the top, front, and side panels. Generous 31.5mm cable management clearance and integrated routing channels make organizing cables simple and stress-free.
Technical Specifications:
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Form Factor: Micro-ATX / Mini-ITX
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Dimensions: 400mm (H) x 225mm (W) x 389mm (D)
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Material: SGCC Steel, Tinted Tempered Glass
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Front I/O: 1x USB 3.2 Gen 2×2 Type-C, 1x USB 3.2 Gen 1 Type-A (Note: No 3.5mm Audio Jack)
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Drive Bays: 1x 3.5″ + 2x 2.5″
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Expansion Slots: 4
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Weight: 4.8 kg
Note: PSU not included.
