The CORSAIR 4000D RS ARGB case hits a new all-time low of $75

Credit: Corsair Published Nov 6, 2026, 7:18 PM EST Kris has been writing about technology for nearly a decade and got their start covering video games at RPG Site before branching out to PC, Android, and general tech coverage. After joining How-To Geek as the Commerce Editor in 2021, they've been focused on helping readers find the best tech products for their needs—and even maybe save a few dollars in the process. Outside work, Kris enjoys building custom keyboards, watching gaming speedruns, and working on creative writing. Sign in to your How-To Geek account Building a new PC doesn't require a premium budget, but finding a case that balances airflow, cable management, and modularity at a fair price is tough. Amazon is currently selling the white CORSAIR 4000D RS ARGB PC Tower for just $75. That's a 40% discount off its regular $125 price, making it the lowest price we've seen for this chassis. If you're planning a new PC build, you'll want to take advantage of this deal. CORSAIR 4000D RS Customizable Mid-Tower PC Case Brand Corsair Material Alloy Steel, Aluminum Color Options Black, White This Corsair PC tower uses a FRAME modular system to make it easier to adapt to your build's needs. Save 40% on the CORSAIR 4000D RS ARGB Mid-Tower Case Get the solid base you need to build your new PC The CORSAIR 4000D RS ARGB Mid-Tower Case is actually more than just what you see in the product image. It has what Corsair calls the FRAME modular system, which lets you swap out the motherboard tray, front I/O panel, and PSU shroud as your needs change. For example, if you want to mount side fans later, the internal side panel near the motherboard tray slides right off, becoming a fan mount instead of a cable cover. In addition, the tool-less panel access makes upgrades a breeze. You don't need to wrestle with tight corners or fight over screws in the PSU tunnel. The PC tower ships with three pre-installed RS ARGB PWM fans that support daisy-chaining to your motherboard's +5V ARGB header, so you can control the lighting without buying a separate hub. Each fan features eight LEDs and runs in Zero RPM mode for near-silent operation at low loads. Meanwhile, the InfiniRail mounting system gives you flexibility on the front and roof, supporting up to 200mm fans on the front or 140mm on top. You'll also get a 3D Y-Pattern airflow front panel that keeps components cold without sounding like a jet engine. Front I/O includes a USB-C port, two USB-A ports, and a headset jack. All in all, this is a great mid-tower PC case at a fantastic price. It's hard to go wrong with Corsair, and the white colorway of this model looks sleek and will look even better when lit up by the LED fans. Don't sleep too long on this deal if you're interested. By the way, if you need help picking parts for your new build, check out our sister site, XDA Developers' XDB Builder, designed to help you build a PC within your budget.