The be quiet! Pure Base 500DX wins in 4 out of 8 comparable specs. Its biggest advantage is Included Fans (100% better).
O11 Dynamic EVO wins in 3 specs (3.5" Bays: 100% better).
Recommendation
Choose Pure Base 500DX if you want the best overall performance — especially included fans.
Choose O11 Dynamic EVO if 3.5" bays matters more to you.
| Spec | be quiet!Pure Base 500DX | Lian LiO11 Dynamic EVO |
|---|---|---|
| Design | ||
| Type | ATX Mid Tower | ATX Mid Tower |
| Side Panel | Tempered Glass | Tempered Glass |
| Weight | 8.5 | 12 |
| Compatibility | ||
| Max GPU Length | 369 mm | 423 mm+15% |
| Max Cooler Height | 190 mm+14% | 167 mm |
| Max PSU Length | 220 mm+5% | 210 mm |
| Max Radiator | 360 mm | 360 mm |
| Motherboard Support | ATX, Micro ATX, Mini ITX | ATX, EATX, Micro ATX, Mini ITX |
| Cooling | ||
| Included Fans | 3+100% | 0 |
| Storage | ||
| 2.5" Bays | 5 | 6+20% |
| 3.5" Bays | 2 | 4+100% |
| I/O | ||
| Front I/O | 1x USB-C, 2x USB-A 3.0, Audio | 1x USB-C, 2x USB-A 3.0, Audio |
| Price | ||
| MSRP | $100−41% | $170 |
| Release Date | Feb 2020 | Feb 2022 |