ASUS A21 Micro-ATX Case Black Edition | 380 mm GPU, 360 mm Cooling

Keep demanding components in a smaller footprint with the ASUS A21 Black Edition. Designed for micro-ATX builds, it gives you room for full-length graphics cards up to 380 mm, support for 360 mm cooling, and compatibility with standard ATX power supplies. That combination makes it a practical choice for builders who want compact dimensions without forcing compromises on GPU class, cooling capacity, or PSU selection. The porous front-panel mesh is built for sustained airflow, helping high-output CPUs and GPUs maintain more consistent temperatures under load. For system integrators and experienced builders, that matters: better intake design reduces thermal bottlenecks, supports quieter fan curves, and leaves more margin for long render sessions, heavy multitasking, or extended gaming workloads. The A21 Black Edition is also a clean foundation for professional-looking systems. Its restrained black finish fits office deployments, creator rigs, and understated gaming builds alike. If you need a micro-ATX case that can accommodate serious hardware while staying easy to spec and deploy, this chassis delivers the right balance of size, cooling support, and component compatibility.