EINAREX has officially introduced the PRISMA SM300, a new microATX Panoramic Chassis designed with a strong focus on airflow efficiency and modern hardware compatibility. The latest addition to the company’s PRISMA series combines a compact dual-chamber structure with an angled bottom intake layout aimed at improving GPU cooling performance in gaming and creator systems.
The company says the PRISMA SM300 was built around a design philosophy in which every structural element contributes to airflow optimization and overall usability, rather than relying solely on visual presentation.
According to Rafa, CEO of EINAREX, the goal behind the chassis was to create a compact panoramic case capable of delivering both clean aesthetics and practical thermal improvements through its internal design.
The PRISMA SM300 features an angled bottom intake platform. EINAREX designed this lower intake section to direct airflow more efficiently toward the graphics card area, which typically carries the highest thermal load in modern gaming PCs. As graphics cards continue to increase in power consumption and heat output, cooling efficiency inside compact systems has become more important for builders. The PRISMA SM300 addresses this challenge through targeted airflow placement while maintaining a smaller microATX footprint.
The chassis supports up to 9 cooling fans and is compatible with side-mounted 360 mm liquid-cooling radiators. This allows users to install high-performance cooling solutions without sacrificing internal space for modern components. The panoramic tempered glass layout is another major part of the design. EINAREX says the glass panels were integrated without heavily restricting airflow paths, allowing users to showcase internal hardware while preserving cooling performance.
Despite its smaller size, the EINAREX PRISMA SM300 supports a wide range of modern hardware configurations. The chassis is compatible with both microATX and Mini-ITX motherboards and supports graphics cards up to 400 mm in length. Additional compatibility includes CPU air coolers up to 160 mm tall, standard ATX power supplies, and 360 mm side-mounted radiators for liquid cooling setups. The internal dual-chamber layout also provides up to 90 mm of cable management clearance, helping users organize cables more efficiently while improving airflow separation between components.
EINAREX has also included several features designed to improve the building experience. These include a sliding tempered glass side panel for easier access, optimized cable routing channels, tool-friendly installation access, and front I/O connectivity featuring USB Type-C support. The company says the chassis continues its broader approach of combining functionality, modern aesthetics, and ease of use in a format designed for current-generation PC hardware.
The EINAREX PRISMA SM300 will be available through selected distributors and retail partners worldwide. Availability may differ depending on region and local distribution channels. Additional information is available through the official EINAREX website.
