
NZXT H3 Flow Micro-ATX Airflow Case - Black
NZXT H3 Flow Micro-ATX Airflow Case - Black is a space-saving case designed for high-performance builds in a smaller form factor. It supports full-sized components while keeping airflow strong through ultra-fine steel mesh panels and a ventilated PSU shroud. This design helps keep components cool and reduces dust build-up, making it suitable for powerful gaming or work PCs in compact setups. The case supports Micro-ATX and Mini-ITX motherboards, including rear-connecting models like ASUS BTF and MSI Project Zero for a cable-free look. Cooling options are flexible, with space for up to a 280 mm radiator at the front, a 240 mm radiator at the top, and a total of seven fan mounts. It comes with one pre-installed F120Q (CV) 120 mm rear fan to provide immediate exhaust airflow. The front panel can hold either two 120 mm or two 140 mm fans, the top supports the same, and the bottom can hold two 120 mm fans.
Inside, the H3 Flow offers clearance for CPU coolers up to 170 mm in height and GPUs up to 377 mm without front fans, 352 mm with front fans, or 317 mm with a front radiator and fans installed. PSU support goes up to 185 mm, with 31.5 mm of space for cable routing. Storage options include up to three 2.5-inch drives and one 3.5-inch drive, with cable channels and tie-down points for neat cable management.
The case is built from SGCC steel with tinted tempered glass, allowing a clear side view of the components. Tool-free panels on the top, front, and side make upgrades and cleaning easy. Expansion is provided through four standard PCIe slots. The front I/O includes one USB 3.2 Type-A port, one USB 3.2 Gen2x2 Type-C port, and a headset jack for quick access. With dimensions of 400 mm in height, 225 mm in width, and 389 mm in depth, the case has a total volume of 35 liters and weighs 4.8 kg.
The NZXT H3 Flow Micro-ATX Airflow Case - Black offers a balance of compact size, cooling capacity, and hardware support, making it a practical choice for users who need performance in a smaller footprint without losing build flexibility.