Modular mid-tower engineering for builders who refuse to compromise | Dual 360mm radiator support for extreme liquid cooling | InfiniRail™ precision fan placement | Reverse-connector motherboard ready | Stunning tempered glass showcase

Quick Specs

• Build without limits using the InfiniRail™ Fan Mounting System for precise, millimetre-level fan placement along a sliding steel rail.
• Achieve extreme thermal performance with dual 360mm radiator support across front, top, and side positions simultaneously.
• Enjoy a cable-free aesthetic with full reverse-connector motherboard compatibility, including ASUS BTF, MSI PROJECT ZERO, and GIGABYTE PROJECT STEALTH.
• Dominate airflow with the 3D Y-pattern front panel, delivering a 12% improvement in intake over previous designs.
• Start building immediately with three pre-installed RS120 ARGB performance fans and a GPU anti-sag stabilisation arm included.

The Mid-Tower Built for Builders Who Mean Business

The Corsair 4000D RS ARGB Modular Mid-Tower is engineered for the discerning South African PC builder who demands both thermal headroom and visual impact. Whether you’re crafting a whisper-quiet workstation, an aggressive custom loop showpiece, or your very first high-performance gaming rig, the 4000D RS delivers the flexibility, cooling capacity, and clean aesthetics to support your vision from first component to final boot.

Slide Into Perfect Airflow with InfiniRail™

Tired of fighting with fixed screw holes that never quite align with your radiator or cooling components? The InfiniRail™ Fan Mounting System eliminates that frustration entirely. Fans slide freely along a steel rail, letting you position them with millimetre-level precision — aligned to GPU hotspots, RAM clearance gaps, or radiator inlets exactly as your build demands. It’s a smarter approach to fan installation that saves time and opens up cooling configurations that traditional cases simply can’t match.

Dual 360mm Radiator Support for Relentless Cooling

The 4000D RS supports simultaneous dual 360mm radiator installations across three mounting locations: front, top, and side panel. This means you can dedicate one 360mm radiator to your CPU and another to your GPU, or run a single large-surface loop for maximum thermal headroom during extended gaming sessions and benchmark runs. With support for up to 13 x 120mm fans in total and compatibility with radiator sizes from 120mm through to 360mm, this case handles the most demanding liquid cooling configurations without breaking a sweat.

A Zero-Cable Showcase Through Tempered Glass

Pair the 4000D RS with a reverse-connector motherboard — ASUS BTF, MSI PROJECT ZERO, or GIGABYTE PROJECT STEALTH — and every power and data cable disappears behind the motherboard tray. What remains visible through the tempered glass side panel is pure hardware: your GPU, RAM, CPU cooler, and motherboard on full display, unobstructed by a single cable. Three pre-installed RS120 ARGB fans bathe the interior in customisable lighting right out of the box, making this case as much a showpiece as a performance platform. The included GPU anti-sag stabilisation arm keeps your graphics card perfectly level, protecting your PCIe slot and completing the polished look.

Why Corsair

Corsair has built its reputation by pushing the boundaries of PC hardware — from high-performance memory and cooling to premium cases trusted by enthusiasts and professionals worldwide. The 4000D RS ARGB is a product of that engineering pedigree, giving South African builders a platform that is as capable as it is visually commanding. When you build with Corsair, you build with confidence.