What the Lian Li O11 Vision-M Is and Why It Matters
The Lian Li O11 Vision-M is a compact Micro-ATX chassis that combines a three-sided tempered glass presentation with an airflow-focused dual-chamber layout, aiming to balance high-end hardware support, cooling performance, and clean cable management in a smaller footprint than earlier O11 Vision designs. At its core, this compact PC case takes the panoramic look of the O11 Vision series and reshapes it for space-conscious builders who still want premium component visibility. A front, side, and top trio of tempered glass panels frames the main hardware chamber, while power supply, storage, and cable clutter move to a second chamber. For builders who want a compact Micro-ATX chassis that shows off RGB lighting, custom loops, and large GPUs without giving up airflow, the O11 Vision-M targets that niche directly.

Three-Sided Glass and Dual-Chamber Layout for Showpiece Builds
Lian Li’s triple-sided tempered glass panels turn the O11 Vision-M into a small-format display case for your hardware. With uninterrupted glass on the front, side, and most of the top, components and RGB lighting remain clearly visible from almost any angle. The dual-chamber design keeps the view tidy by isolating the PSU, cables, and drives behind the motherboard tray. This helps the main chamber stay focused on the motherboard, graphics card, and cooling hardware. Despite its compact footprint of 419.6mm (D) x 275.1mm (W) x 395.2mm (H), the case still supports Micro-ATX or Mini-ITX boards and graphics cards up to 410mm long. According to Lian Li, the O11 Vision-M reduces volume by about 20% compared to the O11 Vision Compact while keeping hardware support generous for high-end, glass-fronted builds.
Optional LCD Divider Adds Monitoring and Customization
One of the O11 Vision-M’s standout features is its optional LCD divider, which sits between the two chambers and hides the radiator and tubing from the main viewing area. The panel is a 9.2in IPS display with a 1920×462 resolution at 60Hz, rated at 500nits brightness. Through L-Connect 3 software, it can show custom images, videos, or system stats such as temperatures and fan speeds. It also supports an offline mode that displays time and date when the PC is powered down. This divider keeps the case’s interior tidy while adding a functional dashboard. For modders who prefer something different, Lian Li provides 3D printing files, allowing users to design their own divider instead of the LCD, which makes the O11 Vision-M unusually flexible for personalization.
Improved Airflow and Dense Cooling Support
The O11 Vision-M aims to fix typical airflow issues of full-glass cases by integrating ventilation directly into the top glass panel. A section of the top has perforations and mounting for large and thick AIO radiators, up to 360mm and 55mm thick. The case supports up to twelve 120mm fans plus one pre-installed 140mm intake fan, giving builders a wide range of air and liquid cooling layouts. Five of those 120mm mounts can host a 360mm radiator up top, while a 240mm radiator fits on the side. The included 140mm fan is placed to feed extra air to the radiator area, improving liquid cooling efficiency. Lian Li claims this optimized layout can lower CPU temperatures by up to 4°C and GPU temperatures by up to 2.6°C compared to the O11D Mini V2 and O11 Vision Compact.

Micro-ATX Form Factor with Space-Efficient Hardware Support
As a Micro-ATX chassis, the O11 Vision-M strikes a balance between compact dimensions and serious hardware support. It accepts Micro-ATX and Mini-ITX motherboards, CPU coolers up to 162mm tall, and power supplies up to 182mm in length. Long GPUs are accounted for with support up to 410mm and a built-in anti-sag bracket for horizontal installation. Storage options sit in the rear chamber, with mounting for either three 2.5in drives or a mix of one 3.5in HDD and one 2.5in SSD, keeping the main chamber clutter-free. Front I/O covers one USB 3.2 Type-C port, two USB 3.0 ports, and a 3.5mm audio jack. For builders wanting a compact PC case that uses space carefully while still looking like a high-end glass tower, the O11 Vision-M presents a strong option.
