The Corsair 4000D RS Frame wins in 4 out of 8 comparable specs. Its biggest advantage is Max Radiator (29% better).
O11 Air Mini wins in 1 spec (3.5" Bays: 100% better).
Recommendation
Choose 4000D RS Frame if you want the best overall performance — especially max radiator.
Choose O11 Air Mini if 3.5" bays matters more to you.
| Spec | Corsair4000D RS Frame | Lian LiO11 Air Mini |
|---|---|---|
| Design | ||
| Type | ATX Mid Tower | ATX Mid Tower |
| Side Panel | Tempered Glass | Tempered Glass |
| Weight | 8 | 7.5 |
| Compatibility | ||
| Max GPU Length | 370 mm+2% | 362 mm |
| Max Cooler Height | 170 mm+10% | 155 mm |
| Max PSU Length | 200 mm+11% | 180 mm |
| Max Radiator | 360 mm+29% | 280 mm |
| Motherboard Support | ATX, Micro ATX, Mini ITX | ATX, EATX, Micro ATX, Mini ITX |
| Cooling | ||
| Included Fans | 3 | 3 |
| Storage | ||
| 2.5" Bays | 2 | 2 |
| 3.5" Bays | 2 | 4+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 | $110 | $110 |
| Release Date | Jan 2025 | Sep 2021 |
