CORSAIR 4000D AIRFLOW Tempered Glass Mid-Tower ATX Case - High-Airflow - Cable Management System - Spacious Interior - Two Included 120 mm Fans - Black

The Corsair RS/4000D frame has been one of the best cases I’ve built in. The airflow is excellent, the layout is clean, and cable management is insanely easy thanks to Corsair’s routing channels and tie-down points. Everything feels sturdy and well-engineered — nothing flimsy or cheaply made. Installing components was straightforward, and the case has plenty of room for larger GPUs, multiple fans, and radiators. My 360mm AIO fit without any issues, and the final build looks super clean thanks to the open interior and simple design. If you want a case that looks premium, runs cool, and makes PC building easier instead of harder, this one is absolutely worth it. Great value and a solid performer.

As the title says, this was my first PC build ever. That being said, even though I’m a building newbie, I still work in IT and am surrounded by tech, so I knew this case was a no brainer. Fantastic airflow, I mean literally amazing, it lives up to its name. Plenty of space inside for everything you need to do, and cable management was easy, like super easy. Only thing I could have wished for was: A: included a full set of front fans. B: make the top part actually removable, I looked at it and didn’t see a way, maybe I’m dumb, but it didn’t seem like there was a way to take it off, which became kind of a pain when I wanting to plug things in on the top. This is not a dealbreaker however, I just have huge hands that didn’t fit well in that tiny space to plug fans etc in and the cpu power cabling. I admit, this probably could have been done ahead of time and maybe this was just a newbie problem lol. That aside, this case is solid, definitely quality parts when buying from Corsair. I love how simple it is to pop off the front grille and filter, as well as how the front of the case and back side kinda snap off and on, it’s literally strong enough that it can’t accidentally fall off, but not so strong that it’s tough to remove (still use the screws of course for 100% protection of falling off). I never leave reviews on Amazon, but honestly, this case was just the favorite part of my whole build. It’s quality built, it’s got a nice dark black color and sexy style, and if you’re thinking about getting this case, DO IT, you won’t regret it at all I can guarantee that. Lastly I just wanna thank Corsair for making fantastic quality products, and being a name you know you can rely on, which is a big deal in a world where having reliable parts in a pc build is literally the most important thing. I hope everyone loves this case as much as I did.

I’ve been running the Corsair 4000D Airflow through serious daily use, not just a clean build and light gaming — and this case has quietly become one of the most no-nonsense, high-performing mid-towers I’ve worked with. This case has handled: • High-end CPU + AIO cooling • Triple-fan GPU with custom curves • Sustained gaming, streaming, and AI workloads • Aggressive airflow tuning and noise optimization And it does exactly what it’s supposed to do: get out of the way and let the hardware work. ⸻ 🌬️ Airflow & Thermals This is where the 4000D earns its reputation. The front mesh actually breathes. With properly tuned intake and exhaust, airflow is smooth and predictable — no weird dead zones, no heat pockets behind the GPU, no top-panel turbulence. Once dialed in: • CPU temps stabilize quickly • GPU temps don’t creep over time • Exhaust heat evacuates cleanly • The system stays thermally consistent even during long sessions The case responds extremely well to custom fan curves and hysteresis, which tells me the airflow path is well designed rather than brute-forced. ⸻ 🔇 Noise Characteristics What surprised me most is how quiet this case can be when tuned correctly. There’s no rattling, no panel buzz, no hollow resonance. Once the fans are balanced, the noise profile becomes smooth and broadband — and at idle, the PC drops below the ambient noise floor of the room. If your airflow is set correctly, the loudest thing you’ll hear is your AC — not the case. That’s a big win. ⸻ 🔧 Build Experience Building in the 4000D is clean and frustration-free: • Plenty of room to route cables properly • Solid tie-down points • Good clearance for GPUs and radiators • Panels fit cleanly and don’t feel flimsy Nothing about the layout feels gimmicky or over-engineered. It’s practical, straightforward, and designed for people who actually care about airflow and maintenance. ⸻ 🧠 Long-Term Use (this matters) After tuning, reconfiguring, and living with the system: • Temps are predictable • Noise is consistent • No thermal surprises • No “why is this suddenly loud today?” moments That consistency is what separates a good case from a great one. ⸻ ⚠️ What it’s NOT This isn’t a showcase RGB aquarium. It’s not a glass-box flex case. It’s not trying to be flashy. And that’s exactly why it works. If you want a case that prioritizes cooling, stability, and sanity, this is it. ⸻ ✅ Final Verdict The Corsair 4000D Airflow is a case that rewards proper tuning. If you slap parts in and run stock curves, it’s good. If you actually care about airflow, fan behavior, and acoustics, it becomes excellent. It’s clean, efficient, quiet when tuned, and built for real workloads — not just photos. I’d absolutely build in it again.

It's a solid, spacious case that made my first build a lot easier. Can't beat that price either -- the RS variant even comes with three fans! Only downside is these fans are a bit noisy at high RPM, although you can tweak the fan curve a bit to make them run slower at the cost of some thermals. The case benefits greatly if you add a rear exhaust fan, which I'd recommend, and can't understand why they wouldn't ship it with one although it's probably to keep the price low. I also like that it's fairly light weight. Many parts can be unscrewed and taken out, like the motherboard mount and the power supply shield though I didn't bother to make use of those features. Not much for the cheese grater design of the front panel, but at least it doesn't interfere with airflow. Well done, Corsair. As the cost of pc building rises you can still fortunately get a quality case for not much.

Amazing case with plenty of space to build in, put fans for airflow and great cable management all at a good price.

The Corsair 400d is a fantastic mid-tower case that excels in one crucial area: cooling. Its thoughtfully designed airflow channels and generous ventilation ensure that your components stay cool under even the heaviest workloads. Here's why I'm impressed: Excellent Airflow: The 400d features ample front, top, and rear intake vents, allowing for optimal airflow throughout the case. Smart Cable Management: The case includes dedicated cable routing channels and tie-downs, making it easy to keep your build clean and tidy, further improving airflow. Supports High-End Components: You can easily fit high-end graphics cards, CPU coolers, and multiple drives within this case. For those bigger GPU’s simply remove the fairing from inside the case. Easy to Build In: The 400d has a spacious interior and tool-less drive bays, making the building process a breeze. Stylish Design: The case has a sleek, modern aesthetic that will look great in any setup. Overall: The Corsair 400d is a strong contender in the mid-tower market. If you prioritize excellent cooling performance and a user-friendly build experience, this case is an excellent choice. I hope this review is helpful!

Bir egzoz, bir ön fan ile geliyor, itx, mATX, ATX ve hatta E-ATX anakartlarla uyumlu, içine devler devi RTX3090 bile sığıyor, yanında da kablolama için cırtcırtlar ve kelepçeler verilmesi, aynı zamanda kasa parçalarının tüm vidalarının tornavida gerektirmemesi gibi hoş detaylar pastaya harika süs oluyor. "Airflow" performansı kıyaslamalarında zirvelerde olmasa da stok halde bile tatmin edici bir soğutması var. Ön panele, ek olarak yüksek performanslı fanlar alırsanız sistemin sıcaklığını dert edeceğinizi zannetmiyorum. Bu kadar övdük hiç eksisi yok mu bu kasanın? Elbette ki var: Örneğin tanıtım resimlerinde gösterilmesine rağmen (yine Corsair'in) RM850 güç kaynağı, HDD yuvası takılıyken yerine sığmıyor. Bunun sebebi kabloların hesaba katılmaması. (Resimlerde de kablo gözükmüyor :D ) Yani 850w ve üzeri bir güç kaynağınız varsa ve HDD yuvasını kullanmayı düşünüyorsanız, iki defa düşünün. Bazıları ön paneldeki toz filtresinin fana çarpması problemine sahipmiş ancak ben böyle bir sorun yaşamadım. E-ATX bir anakartı takmak için kablolama yolunu sökmeniz gerekmesi de bir eksi olarak sayılabilir. İndirimli fiyatına ve hatta daha ucuza güç kaynaklı kasalar alınabilir, bu tabi ki alıcının ne tarz bir ürüne baktığıyla ilgili. Fakat hem airflow olup hem de bu kadar şık ve sade duran kasalar piyasada oldukça az. Corsair oldukça sağlam bir marka, üzmez. Ancak burada ne çeşit bir kasa aradığınız kritik öneme sahip. Hem sistemimle uyumlu olsun, hem kurarken beni yormasın, hem sade olsun hem de içi efil efil essin diyorsanız bu kasayı "indirimdeyken" almanızı tavsiye ederim. Keza normal fiyatı olan 1K küsurlara deyeceğini zannetmiyorum.

エアフローがしっかりしていて良く冷えます。 自由に組めるので大体の人はこのケースで十分だと思います。

This case is good; it's easy to care for and clean, and it provides plenty of space to add components. I'll also call this the Dust Dome 4000 because the front panel protects against a lot of dust entering. It's actually very effective. I would recommend this for a starter build or even a general build. It feels premium, and for what it is, it's really good!

Great case. Compared two my previous one, great design, easy of use for cleaning, great airflow. No screw is required for this case