PC case NZXT H9 Flow RGB Midi Tower Black

The NZXT H9 Flow RGB Midi Tower Black is a dual-chamber PC case designed for high-performance builds that require strong cooling and a clear view of internal components. The case features wraparound tempered glass panels, ultra-fine mesh for filtered airflow, and a layout that separates heat-generating components from the power supply and drives to improve thermal performance and cable routing.

Advantages

The H9 Flow provides optimized airflow through angled front-right fans and perforated steel panels, supports up to ten fans and large radiators (up to 420 mm on the top and front-right), and accommodates GPUs up to 435 mm. It includes pre-installed fans for immediate cooling, offers extra-wide cable channels with Velcro straps and tie-down points for easy cable management, and is compatible with rear-connect motherboards such as ASUS BTF and MSI Project Zero for a cleaner, cable-free look.

Suitable for

• High-performance gaming PCs requiring extensive airflow and large GPUs
• Workstations that need multiple storage drives (2.5" and 3.5") and effective cooling
• Custom liquid-cooling setups with support for up to 420 mm radiators
• Showcase builds that benefit from panoramic tempered glass panels

Key specifications

• Form factor: Midi Tower (supports EATX, ATX, Micro ATX, Mini-ITX)
• Drive bays: 2 x 3.5" and 6 x 2.5"
• Pre-installed fans: one F420 RGB Core single-frame (front-right), one F120Q (CV) rear fan
• Fan capacity: up to nine 140 mm fans + one 120 mm rear fan (10-fan total)
• Radiator support: up to 420 mm on top and front-right
• Maximum GPU length: up to 435 mm
• Materials: Tempered glass, SGCC steel, ultra-fine mesh
• I/O: 2 x USB 3.2 Gen 1 Type-A ports
• Colour: Black
• Weight: 12.6 kg

How to use

Install the motherboard (EATX/ATX/Micro ATX/Mini-ITX) in the main chamber and route power and data cables through the extra-wide channels to the rear chamber. Mount drives in the dedicated 2.5" and 3.5" bays and position GPUs up to 435 mm in length. Configure cooling by installing up to nine 140 mm fans across the top, front-right, and bottom positions and a 120 mm fan in the rear; install radiators up to 420 mm on the top or front-right panels as required. Use the pre-installed front-right F420 RGB Core fan and the rear F120Q (CV) for basic cooling before adding additional fans or radiators.

Recommendations

For best thermal performance, combine the angled front-right fan configuration with mesh intake panels and position radiators on the top or front-right depending on your GPU clearance. Use the built-in Velcro straps and tie-down points to keep cables organized and maintain unobstructed airflow.