Best Extended ATX Computer Cases of 2025

The iONZ KZ-30E Case is designed for quiet operation with its fully enclosed structure and EPDM sound dampening material, ensuring a serene gaming or office environment. You'll appreciate the expandable design, which accommodates a tall CPU cooler and long VGA cards, making installation straightforward. The mesh front panel optimises airflow, helping to keep your components cool while reducing noise. Additionally, the included 120mm silent fan, along with options for more fans, enhances cooling efficiency, ensuring your system runs smoothly.

The iONZ KZ19 Spin Case features a bold curved acrylic front panel that enhances cooling airflow while keeping dust at bay. With a variety of easily accessible ports, including USB 2.0 and USB 3.0 alongside HD Audio, you can quickly connect your devices. The removable tempered glass side panel makes it easy for you to tinker with your build whenever needed. Plus, the bottom-mounted PSU design allows for the installation of up to seven fans, ensuring optimal airflow throughout your system.

The MSI MAG FORGE 100R offers a stunning 4mm tinted tempered glass side panel, perfect for showcasing your RGB lighting setup. With two 120mm addressable RGB fans and one additional system fan, you can easily customise your cooling and aesthetics. The included ARGB hub allows for extensive lighting options, enhancing your gaming rig's visual appeal. Furthermore, the magnetic dust filter on the top makes cleaning a breeze, ensuring your components remain dust-free and your build looks pristine.

The KZ-2X Tower Case offers enhanced airflow by positioning the PSU at the front, allowing it to draw in cool air directly from outside. This design not only keeps your components cooler but also helps extend their lifespan. Additionally, the front-mounted PSU can operate quietly at lower fan speeds, providing a more peaceful computing experience. Improved heat dissipation ensures that internal components are kept at optimal temperatures, reducing the risk of thermal throttling, especially during intense gaming sessions.

The CiT Flash Case offers an elegant blend of style and functionality, featuring a sleek tempered glass front panel and four pre-installed rainbow fans that create a captivating visual effect. You can easily control your fan settings with a dedicated LED button, allowing you to choose from various colour modes at your convenience. The case also supports advanced cooling options, accommodating an AIO water cooler with space for a 240mm radiator, ensuring your system remains cool even during intense gaming sessions. With ample space for high-end components, you can elevate your PC's performance.

The Antec VSK-4000B Case is designed with SGCC steel, ensuring durability and stability for your computer setup. It features nine drive bays, providing ample space for all your storage needs. Additionally, the case includes two 120mm fan mounts, with one fan already included, helping to keep your system cool. This combination of features makes it easier for you to maintain optimal performance and efficiency in your computer system.

The Fractal Design Focus G is a contemporary ATX case that allows you to showcase your hardware through its large windowed side panel. With two pre-installed Fractal Design Silent LL 120 mm White LED fans, it ensures high airflow, keeping your components cool during demanding tasks. The filtered air intakes at the front, top, and base help maintain a dust-free interior, enhancing the longevity of your system. Additionally, it offers great cooling support for high-profile CPU coolers and long graphics cards, providing flexibility for high-performance setups.