LIAN LI A4-H2O 11-Liter Mini-ITX SFF Aluminum PC Case with PCIe 5.0 Riser – Silver – G99.A4H2OA5.00

A Tribute to Small Form Factor Innovation

The LIAN LI A4-H2O represents the absolute pinnacle of ultra-compact PC chassis engineering. Developed in a special collaboration with Daniel Hansen from DAN Cases, this stunning 11-liter small form factor enclosure serves as a highly refined update to the iconic DAN A4-SFX concept. Built to carry on the legacy of minimalist, space-saving design, the A4-H2O radically improves modern hardware compatibility to meet the demands of today’s gamers and creators. Despite its incredibly small footprint—which easily undercuts most modern gaming consoles in size—this chassis brings flawless support for large all-in-one (AIO) water cooling solutions, streamlining your entire ITX installation process.

Striking Minimalist Silver Design

Elegance meets pure functionality with the A4-H2O’s premium construction. Forged with a premium anodized silver aluminum exterior and a sleek matte black SPCC steel interior, the case presents a beautiful minimalist aesthetic that demands attention. Finely machined mesh ventilation surrounds almost every side of the enclosure, ensuring internal components breathe without relying on aggressively stylized cutouts. Whether it’s placed in a living room entertainment center or on a modern minimalist desktop workspace, its remarkably small volume means you get to enjoy a spacious, clutter-free setup without ever sacrificing high-end computing power.

Intelligent Sandwich Layout and Maximum GPU Support

To squeeze uncompromising flagship performance into an 11-liter frame, the A4-H2O employs a highly optimized internal sandwich layout. This brilliant structural design physically separates the heat zones by mounting the graphics card vertically behind the Mini-ITX motherboard. Doing so creates massive interior real estate, allowing builders to slot in colossal triple-slot graphics cards up to 322mm in length. Included out-of-the-box is a cutting-edge PCIe 5.0 riser cable capable of blistering 32 GT/s speeds, providing limitless bandwidth for the latest generation of GPUs while remaining fully backward compatible. Furthermore, specialized extra standoffs are included to push standard two-slot GPUs closer to the side panel, optimizing fresh air intake and exhaust directly out of the chassis.

Uncompromised Cooling and Modular Accessibility

Thermal throttling is a thing of the past with the A4-H2O’s uncompromised approach to internal airflow. The top compartment utilizes a cleverly designed removable bracket that accommodates a 240mm AIO liquid cooler radiator up to 55mm thick. Paired with fine mesh panels covering the top, sides, and back, your hardware remains saturated in cool, fresh air intake. Building inside this compact powerhouse is remarkably stress-free thanks to fully removable front, top, side, and bottom panels. This complete 360-degree accessibility allows builders to easily route cables, install bulky hardware, and perform maintenance with absolute freedom. The removable bottom panel also houses the dedicated mounting zone for a 2.5-inch SSD, keeping your storage drive completely out of the way of your main cable routes.

Premium Connectivity and Power Solutions

Powering your elite SFF rig is made simple through the included removable mounting bracket, natively supporting both standard SFX and larger SFX-L power supplies. LIAN LI generously pre-routes a high-quality power cord extension inside the frame, guaranteeing interference-free hardware installation. Thoughtful design extends perfectly to external connectivity as well. Neatly tucked inside a recessed cutout on the left side of the chassis sits a modern, fully-equipped front I/O panel. This connectivity hub features a premium-grade tactile power button, dedicated Mic and HD-Audio ports, a high-speed USB 3.0 Type-A port, and a reversible USB 3.1 Type-C port, delivering rapid data transfers precisely within arm’s reach.