This article covers CORSAIR FRAME 4000D RSモジュール式ハイエアフローミッドタワー PC ケース.

Overview

The CORSAIR FRAME 4000D RS is a mid-tower ATX chassis that redefines modularity in the consumer PC case market. Its standout feature is the FRAME modular design, which lets you swap the motherboard tray and front I/O assembly to suit your build preferences. The case comes pre-installed with three RS120 120mm fans at the front, and supports up to twelve 120mm fans or dual 360mm radiators, offering immense cooling potential. With a white finish and tempered glass side panel, it’s built to showcase clean cable management, especially when paired with reverse-connector motherboards like ASUS BTF, MSI Project Zero, or Gigabyte Project Stealth. Corsair’s InfiniRail system adds further flexibility with movable fan mounts that accept fans up to 200mm. The front panel features a Y-shaped ventilation pattern for high airflow, and the case is designed for the iCUE LINK ecosystem—though the system hub is sold separately. Whether you’re building a high-end gaming rig or a powerful workstation, the FRAME 4000D RS offers the expandability and customization that enthusiasts crave.

Compatibility Guide

This case supports standard ATX, Micro-ATX, and Mini-ITX motherboards. Its main compatibility highlight is support for reverse-connector (back-connector) motherboards, allowing virtually cable-free builds. The power supply mounts at the bottom, compatible with standard ATX PSUs. Form factors: ATX, Micro-ATX, Mini-ITX PSU mounting: Bottom (ATX PS/2) Cooling: Up to 12x 120mm fans, dual 360mm radiators Storage: Official specs not listed; typical mid-tower accommodates multiple 2.5”/3.5” drives GPU clearance: Not officially stated, but space is generous enough for dual 360mm radiators CPU cooler height: Not officially stated, but ample room for large air coolers The case ships with three RS120 fans pre-installed at the front, so you can start building immediately. However, if you want to use the iCUE LINK ecosystem, you’ll need to purchase the hub separately.

Product Info

The FRAME 4000D RS launched in late 2025 and sits at the upper mid-range tier of the PC case market. It’s available on and other major retailers for around ¥15,000, which is competitive given its modularity and cooling capacity. Corsair provides a standard 2-year warranty, extendable through product registration. Availability: , Corsair official store, specialty PC retailers Cooling capacity: Up to 12x 120mm fans / dual 360mm radiators Included: 3x RS120 fans, accessory box Color: White (also available in black) * Materials: Steel frame, tempered glass side panel In terms of market positioning, this case brings high-end modularity and support for the latest motherboard trends (reverse connectors, iCUE LINK) at a mid-range price, giving it a clear edge over conventional mid-tower offerings.

Best Use Cases

Gamers who value clean aesthetics: Paired with a reverse-connector motherboard, the FRAME 4000D RS hides almost all cables, creating a stunningly clean interior view through the glass panel. Ideal for showcasing RGB components and high-end hardware. Enthusiasts requiring high cooling performance: With support for up to 12 fans and dual 360mm radiators, this case handles hot CPUs and GPUs with ease. Perfect for liquid-cooling setups or high-airflow air-cooled builds. * Customization lovers: The modular FRAME design allows you to replace the motherboard tray and I/O panel down the line, so you can adapt the case to new layouts or motherboard standards without buying a whole new chassis. ## Alternatives
In the same price bracket, competitors include the Fractal Design Pop Air and NZXT H5 Flow. Fractal Design Pop Air: Offers great airflow at a slightly lower price, but lacks modularity and reverse-connector support. It’s simpler and less customizable. NZXT H5 Flow: Known for its sleek design and solid cooling, but doesn’t match the FRAME 4000D RS in fan capacity or modularity, and doesn’t support back-connector motherboards. If you value future-proofing through modularity and the ability to hide cables completely, the FRAME 4000D RS is the clear winner in this segment.

Things to Consider

First, the case only includes three front fans; no rear exhaust fan is provided, so you’ll need to buy one separately for optimal airflow. The iCUE LINK hub is also sold separately, so achieving a fully streamlined iCUE LINK build requires extra investment. Official storage drive counts have not been published, so users needing many HDDs should verify capacity from reviews or retailer photos before purchase. Similarly, maximum GPU length and CPU cooler height aren’t officially stated—while the case clearly has room for large components (given dual 360mm radiator support), it’s wise to check user reports if you’re planning to install an oversized GPU or a massive tower cooler. The tempered glass side panel is beautiful but fragile; handle with care during assembly and cl

Product Disclosure (Amazon)

  • Manufacturer: CORSAIR
  • Seller: Amazon.co.jp
  • Fulfilled by: Amazon.co.jp
  • ASIN: B0DPJ9FD5N
  • Note: This article covers a manufacturer-made product based on Amazon listing details.