CORSAIR 4000D AIRFLOW Tempered Glass Mid-Tower ATX Case - High-Airflow - Cable Management System - Spacious Interior - Two Included 120 mm Fans - Black
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AI Verdict
The Corsair 4000D Airflow is an $80 mesh-front workhorse that delivers top-tier cooling for first-time builders, provided you buy extra fans and ditch the hard drive cage.
The 4000D Airflow nails the fundamentals of PC building with its 25mm cable routing depth and high-flow mesh panel. It easily swallows modern 360mm graphics cards while keeping them cool, making it a perfect shell for mid-range to high-end gaming rigs.
If you want to run a top-mounted 360mm radiator or need more than two USB ports on the front, step up to the larger Corsair 5000D Airflow.
Regret Score™
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Pros
- Triangular mesh front panel drops CPU and GPU temperatures by up to 5°C compared to solid-front cases.
- RapidRoute channel provides a roomy 25mm of depth behind the motherboard for hiding thick cable bundles.
- Tool-less side panels use a satisfying snap-on mechanism instead of annoying thumbscrews.
- Fits massive GPUs up to 360mm long, easily clearing RTX 4090 Founders Edition cards.
Cons
- Only includes two basic 3-pin 120mm fans, forcing you to buy extras for optimal intake.
- Front I/O is incredibly sparse with just one USB Type-A and one USB Type-C port.
- Installing a 360mm radiator in the front blocks the removal of the magnetic dust filter.
- The built-in vertical GPU mount puts air-cooled cards right against the glass, choking their airflow.
Dimension Scores
The perforated steel front panel allows massive air intake, keeping high-wattage components well below thermal throttling limits.
The open mesh design lets fan noise escape easily, and the included 3-pin fans drone at higher RPMs.
The steel chassis is rigid and the color-matching on the plastics is excellent, though the rear panel flexes slightly under pressure.
The RapidRoute plastic channel and 25mm of rear clearance make hiding thick 24-pin ATX cables completely effortless.
Best For
- First-time PC builders who need foolproof cable management channels.
- Air-cooled builds utilizing large tower coolers up to 170mm tall.
- Budget-conscious buyers who already own a stack of 120mm case fans.
Not Recommended For
- Data hoarders needing multiple 3.5-inch hard drives, as the HDD cage blocks PSU cables.
- Custom water-cooling loops requiring thick push-pull 360mm radiator setups.
Watch Out For
- The HDD cage sits too close to the power supply. If you have a PSU longer than 160mm or stiff braided cables, you will have to completely remove the cage to make them fit.
- Mounting a 360mm AIO cooler in the front panel traps the front dust filter. You literally cannot slide the filter out for cleaning without unscrewing the radiator first.
- Top radiator clearance is extremely tight. A 280mm AIO will likely hit your RAM sticks unless you use low-profile memory under 35mm tall.
- The front panel audio jack often requires digging into the Realtek Audio Console and manually switching the playback device to 'internal output' to get any sound.
Full Specifications
| ASIN | B08C7BGV3D |
| Brand | Corsair |
| Color | Black |
| Series | 4000D AIRFLOW |
| Fan Size | 120 Millimeters |
| Language | English |
| Material | Alloy Steel, Plastic, Tempered Glass |
| Batteries | 1 Lithium Ion batteries required. |
| Case Type | Mid Tower |
| Model Name | 4000D AIRFLOW |
| Item Weight | 17.2 pounds |
| Manufacturer | Corsair |
| Wireless Type | 802.11a |
| Cooling Method | Air, Fan Cooler |
| Flash Memory Size | 8 GB |
| Item model number | CC-9011200-WW |
| Product Dimensions | 18.3 x 9.1 x 17.8 inches |
| Computer Memory Type | DIMM |
| Item Dimensions LxWxH | 18.3 x 9.1 x 17.8 inches |
| Number of USB 2.0 Ports | 1 |
| Number of USB 3.0 Ports | 1 |
| Motherboard Compatability | Extended ATX, ATX, MicroATX, MiniATX |
| Power Supply Mounting Type | Bottom Mount |
| Recommended Uses For Product | Gaming |
| Standing screen display size | 75 |
| Is Discontinued By Manufacturer | No |
What Buyers Say
The hard drive cage is the undisputed villain of this case. Nearly every builder ends up ripping it out just to cram their power supply cables into the basement. Beyond that headache, the airflow performance is universally praised, with the mesh front panel dropping system temps significantly compared to solid-front alternatives. The tool-less side panels are a massive hit, but the stingy front I/O and inclusion of only two non-PWM fans leave some buyers feeling nickel-and-dimed.
“Ripped out the HDD cage immediately because my PSU cables wouldn't fit, and I had to buy a 5-pack of Arctic fans, but my 3080 has never run cooler.”
Common Praise
- Snap-on side panels make opening the case for quick tweaks incredibly fast.
- Velcro straps in the RapidRoute channel hold thick cable bundles perfectly flat.
- Triangular mesh front panel pops off easily for quick access to the dust filter.
- Easily fits massive modern GPUs without needing to remove front intake fans.
Common Complaints
- Hard drive cage completely blocks modular PSU cables and has to be removed.
- Only one USB Type-A port on the front panel is frustrating for peripheral-heavy users.
- Included 3-pin fans are loud at full speed and feel cheap.
- Front dust filter occasionally sags and makes a scraping noise against the intake fans.
Ownership Tips
- The dark tinted glass on the black model acts like a mirror unless you have very bright RGB strips inside.
- Dust buildup on the front mesh is highly visible on the black model, requiring a wipe-down every two weeks.
- The single combo audio jack requires a splitter if your headset has separate mic and headphone plugs.
Frequently Asked Questions
Does the front dust filter rub against the fans?
It can. Some users report the flexible mesh filter bowing inward and scraping against 120mm front intake fans. Stretching it tight or adding tiny rubber spacers fixes it.
Can I fit an RTX 4090 in this case?
Yes. The case supports GPUs up to 360mm long. An RTX 4090 Founders Edition is 304mm, leaving plenty of room for front intake fans.
Are the included fans PWM?
No. The two included 120mm AirGuide fans are basic 3-pin DC fans. You can control their speed via voltage in your BIOS, but they aren't as precise as 4-pin PWM fans.
Can I mount my GPU vertically?
Technically yes, as it has two vertical PCIe slots. You will need to buy your own PCIe riser cable, and air-cooled cards will sit dangerously close to the side glass and overheat.
Will a 280mm AIO fit on top?
It fits, but it heavily depends on your motherboard and RAM height. Anything taller than Corsair Vengeance LPX memory will likely block the radiator fans.
Buying Guide
You are buying a great skeleton that needs a little meat on its bones. The stock cooling is just okay out of the box because Corsair only gives you two basic fans. Plan to buy at least three extra 120mm fans for the front intake to actually utilize that mesh panel. Measure your power supply before building. If your PSU is longer than 160mm, you will absolutely have to throw the hard drive cage in the trash to make room for your cables.
360mm GPU Clearance
This is the physical distance from the back of the case to the front fans. It means you can fit massive, brick-sized graphics cards like the RTX 4080 without them hitting the front of the case.
25mm Cable Routing Depth
Think of this as the closet space behind your motherboard. 25mm is about an inch, which is plenty of room to shove thick, braided power cables so the glass side panel doesn't bulge outward.
ATX Mid-Tower
This is the goldilocks size for PCs. It fits standard full-size motherboards and sits comfortably on a desk without looking like a mini-fridge.
Alternatives
If you need more than two USB ports on the front panel or want to top-mount a massive 360mm liquid cooler, search for a full tower airflow case.
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