The ASUS A21 PLUS microATX case offers support for hidden-connector motherboards, 360 mm radiators and 380 mm graphics cards, with two color options, four pre-installed ARGB fans and clean cable management.

ASUS A21 PLUS microATX Gaming Case – Product Description

The ASUS A21 PLUS is designed for modern PC builders and gamers who want a compact case without sacrificing compatibility or airflow. Built around a micro-ATX form factor, it supports hidden-connector (back-connect) motherboards, enabling cleaner builds with minimal visible cabling. Despite its size, the chassis accommodates up to 360 mm radiators and graphics cards up to 380 mm, making it suitable for high-performance gaming and creator systems.

Four pre-installed ARGB fans provide strong airflow and customizable lighting out of the box, reducing the need for immediate upgrades. Thoughtful cable-routing channels and dedicated space behind the motherboard tray help maintain a tidy interior, improving both aesthetics and airflow efficiency. Available in two color options, the A21 PLUS fits seamlessly into a wide range of setups, from minimalist builds to RGB-focused gaming rigs. It’s an excellent choice for users who want performance, clean design, and future-ready compatibility in a compact case.