The NZXT H9 Flow wins in 6 out of 8 comparable specs. Its biggest advantage is Included Fans (100% better).
H6 Flow wins in 1 spec (MSRP: 48% better).
Recommendation
Choose H9 Flow if you want the best overall performance — especially included fans.
Choose H6 Flow if msrp matters more to you.
| Spec | NZXTH6 Flow | NZXTH9 Flow |
|---|---|---|
| Design | ||
| Type | ATX Mid Tower | ATX Mid Tower |
| Side Panel | Tempered Glass | Tempered Glass |
| Weight | 7.2 | 10.2 |
| Compatibility | ||
| Max GPU Length | 365 mm | 435 mm+19% |
| Max Cooler Height | 163 mm | 165 mm+1% |
| Max PSU Length | 180 mm | 185 mm+3% |
| Max Radiator |
| 360 mm |
| 360 mm |
| Motherboard Support | ATX, Micro ATX, Mini ITX | ATX, Micro ATX, Mini ITX |
| Cooling | ||
| Included Fans | 2 | 4+100% |
| Storage | ||
| 2.5" Bays | 2 | 4+100% |
| 3.5" Bays | 1 | 2+100% |
| I/O | ||
| Front I/O | 1x USB-C, 1x USB-A 3.0, Audio | 1x USB-C, 2x USB-A 3.0, Audio |
| Price | ||
| MSRP | $85−48% | $165 |
| Release Date | Mar 2024 | Jan 2023 |
