Lian Li
O11 Dynamic EVO
$169.99
Released 2022-01
Best PC Cases · head-to-head
O11 Dynamic EVO vs 4000D Airflow
A sourced, side-by-side comparison. 4000D Airflow is cheaper at $104.99. Every spec and price links to its source.
Corsair
4000D Airflow
$104.99Cheaper
Released 2020-09
Which is better: the O11 Dynamic EVO or 4000D Airflow?
On the specs we track, they're closely matched. The 4000D Airflow is the cheaper at $104.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | O11 Dynamic EVO | 4000D Airflow |
|---|---|---|
| US price | $169.99 | $104.99 |
| Brand | Lian Li | Corsair |
| Released | 2022-01 | 2020-09 |
| Form factor | Mid-Tower (E-ATX up to 280 mm/ATX/mATX/ITX) | Mid-Tower (ATX/mATX/ITX/E-ATX up to 277 mm) |
| Max GPU length (mm) | 426 | 360 |
| Max cooler height (mm) | 167 | 170 |
| Included fans | 0 (no fans included in base config) | 2 x 120 mm AirGuide |
| Radiator support | Top: 360/280 mm; Side: 360/280 mm; Bottom: 360 mm | Front: 360/280/240 mm; Top: 240 mm (2x120) or 280 mm (2x140); Rear: 120 mm |
| Side panel | 4 mm Tempered Glass (both front and side) | Tempered Glass (slide-on/slide-off) |
| Dimensions (mm) | 465 x 285 x 459 | 453 x 230 x 466 |
| Release | 2022-01 | 2020-09 |
Sources — O11 Dynamic EVO: lian-li.com (verified 2026-06-15). 4000D Airflow: corsair.com (verified 2026-06-23).
What's the difference between the O11 Dynamic EVO and 4000D Airflow?
Where the two actually differ on the specs we track (7 of 7). Matching specs are omitted.
- Form factor: O11 Dynamic EVO Mid-Tower (E-ATX up to 280 mm/ATX/mATX/ITX) vs 4000D Airflow Mid-Tower (ATX/mATX/ITX/E-ATX up to 277 mm)
- Max GPU length (mm): O11 Dynamic EVO 426 vs 4000D Airflow 360
- Max cooler height (mm): O11 Dynamic EVO 167 vs 4000D Airflow 170
- Included fans: O11 Dynamic EVO 0 (no fans included in base config) vs 4000D Airflow 2 x 120 mm AirGuide
- Radiator support: O11 Dynamic EVO Top: 360/280 mm; Side: 360/280 mm; Bottom: 360 mm vs 4000D Airflow Front: 360/280/240 mm; Top: 240 mm (2x120) or 280 mm (2x140); Rear: 120 mm
- Side panel: O11 Dynamic EVO 4 mm Tempered Glass (both front and side) vs 4000D Airflow Tempered Glass (slide-on/slide-off)
- Dimensions (mm): O11 Dynamic EVO 465 x 285 x 459 vs 4000D Airflow 453 x 230 x 466
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
O11 Dynamic EVO
Only one whitelisted source survived verification: Tom's Hardware's hands-on of the exact O11 Dynamic EVO. It is explicitly a hands-on build rather than a full lab review (the author states they don't have cooling and acoustic numbers), and it praises the case's near-endless modularity while flagging its enormous, likely floor-bound footprint, inconvenient bottom-mounted I/O, the lack of any included fans, and how quickly cost escalates once you add kits. The originally-cited TechPowerUp lab review was dropped because the fetched page returned only the review's introduction and none of its conclusion quotes were present in the text. (1 sourced review.)
Praised: Near-endless modularity and reconfiguration — reversible layout, movable front I/O, and five optional kits make it more a case platform than a fixed chassis; Reasonably priced base model (~$169) for the feature set, including a tasteful front RGB strip; Downright huge, easy-to-build interior with tool-free panel removal and roughly 16 inches of GPU clearance.
Flagged: Enormous footprint (over 18 inches tall, ~11 inches wide) — likely floor-bound, which makes the bottom-mounted I/O ports inconvenient; Ships with no fans; buyers must budget extra for cooling; Cost escalates quickly once you add kits; the $13 Top I/O kit should be included by default.
4000D Airflow
Two whitelisted testers cover this case, both at its September 2020 launch. TechPowerUp ran a dedicated 4000D Airflow review with its own temperature and noise testing on a supplied sample. Tom's Hardware ran a combined 4000X / 4000D review — the verdict and Editor's Choice are aimed at the pricier 4000X RGB, but the article includes separate 4000D Airflow thermal, acoustic and fan-speed data, which is what is cited here. Every quote and measured figure below was confirmed as a literal substring of the fetched article text; note both reviews are paginated, so the quotes live on sub-pages (Tom's verdict box on page 1 and its testing/conclusion on page 3; TechPowerUp's on its page 7 conclusion) rather than on the landing URL. Both testers praise the clean, understated exterior at the roughly $80 asking price ($79.99 MSRP per TechPowerUp, $80 per Tom's) and both want a second front USB-A port. Only Tom's produced measured cooling and acoustic results. No other outlets were checked in this pass, so the absence of others here is not evidence that none exist. (2 sourced reviews, 2 lab-tested.)
Praised: Clean, understated minimalist exterior with a solid feel for the roughly $80 asking price; Good value against competitors — Tom's calls the small Corsair premium well worth it, TechPowerUp calls it a beautiful and capable case for the price; Practical build details that ease assembly and cable routing (side panels that unhook and swing out, Velcro cable channel, plentiful zip-tie anchors).
Flagged: Only one front USB-A port; both testers wanted a second USB 3.0; Heavily tinted glass side panel hides non-RGB hardware — TechPowerUp calls the tint too heavy, Tom's notes it as a deliberate trade-off it is willing to accept; Liquid-cooling constraints — TechPowerUp says support is not as vast as other ATX cases; Tom's warns thick front radiators won't clear the PSU shroud cutout and the top is limited to 280 mm.