Overview
The H9 Flow is a spacious mid-tower ATX case built for high-performance builds, balancing airflow and aesthetics. Its dual-chamber design improves cooling and cable management, while perforated panels, angled fans, and ample fan and radiator support deliver optimal thermal performance.
- Dual-Chamber Design: Separates main components from the PSU and drives for improved thermal performance and cable management.
- Optimized Airflow: Perforated steel panels and angled front-right fans ensure efficient cooling for high-performance builds.
- Pre-Installed Fans: Includes one F420 RGB Core single-frame fan unit in the front-right and one F120Q (CV) fan in the rear. CV = Case Version (3-pin DC)
- Ten-Fan Capacity: Supports up to nine 140mm fans across the top, front-right, and bottom, plus one 120mm fan in the rear.
- Panoramic View: Showcase every detail of your build with seamless, wraparound tempered glass paneling.
- Large Radiators & GPUs: Fits up to a 420mm radiator on the top and front-right, with plenty of clearance for high-end graphics cards.
- Easy Cable Management: Extra-wide channels, built-in Velcro straps, and tie-down points make cable routing effortless.
- Back-Connect Ready: Compatible with rear-connecting motherboards like ASUS BTF and MSI Project Zero for a cable-free look.

Optimized Airflow

Mesh Panels

Spacious Dual-Chamber

10-Fan Cooling

Large Radiator Support

Maximum Graphics

Back-Connect Ready

Easy Cable Management
Tech Specs
Dimensions
Height
506 mm (19.9 in)
Width
315 mm (12.4 in)
Depth
481 mm (18.9 in)
Volume
76.7 L
Weight
12.6 kg (27.78 lb)
General
Enclosure Type
Mid-tower
Motherboard Compatibility
E-ATX (Up to 277 mm), ATX, Micro-ATX, Mini-ITX
Rear-Connecting Motherboard Support (BTF, Project Zero)
Yes (ATX)
Materials
SGCC steel, clear tempered glass (white), tinted tempered glass (black)
Clearance
CPU Cooler Height
165 mm
GPU Length
Up to 459 mm (with <56 mm thickness fans installed at the front-right) Up to 410 mm (with 56 mm thick 420 mm AIO and fans installed at the front-right)
PSU Length
200 mm
Top Radiator & Fan Thickness
Up to 80 mm (360 mm) Up to 62 mm (420 mm)
Front I/O Ports
USB 3.2 Type-A
2
USB 3.2 Gen2x2 Type-C
1
Headset Jack
1
Expansion Slots
Standard
7
Vertical
0
Drive Bays
2.5″
4+2
3.5″
2
Fan Support
Front-Right
3 x 120 mm / 3 x 140 mm (1 x F420 RGB Core included)
Top
3 x 120 mm / 3 x 140 mm
Bottom
3 x 120 mm / 3 x 140 mm
Rear
1 x 120 mm (1 x F120Q (CV) included)
Radiator Support
Front-Right
Up to 420 mm
Top
Up to 420 mm
Bottom
Up to 360 mm
Rear
Up to 120 mm
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