The Lian Li O11 Vision wins in 4 out of 8 comparable specs, with 2 ties. Its biggest advantage is 2.5" Bays (100% better).
4000D Airflow wins in 2 specs (Included Fans: 100% better).
Recommendation
Choose O11 Vision if you want the best overall performance — especially 2.5" bays.
Choose 4000D Airflow if included fans matters more to you.
AI Versus Verdict
The Lian Li O11 Vision is the objective winner of this comparison, securing more category wins across the evaluated specifications. Its most significant advantage over the Corsair 4000D Airflow is the inclusion of double the 2.5" drive bays, representing a 100% increase in storage capacity for small-form-factor drives. While the Corsair 4000D Airflow falls behind in total category wins, it maintains a distinct advantage by providing twice as many included fans, offering a 100% improvement in out-of-the-box cooling hardware.
Users who prioritize extensive internal storage for multiple 2.5" drives should choose the Lian Li O11 Vision for its superior bay configuration. Conversely, builders looking to minimize additional hardware purchases will find the Corsair 4000D Airflow more practical, as it comes equipped with a higher number of pre-installed fans. Selecting between these two cases depends entirely on whether your build requires more drive mounting points or immediate cooling support without needing to buy extra components.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.
