Cooler Master expanded its case lineup at Computex 2026 with new offerings spanning budget builds to professional workstations. The Qube 340 targets entry-level enthusiasts with a compact footprint measuring just 386.1 × 230 × 429.4 mm while still accommodating full-size ATX PSUs, four 2.5-inch drives, and customizable mesh panels. Pricing targets the $45-55 range for a late July launch.

The Qube 540 receives aesthetic updates with polished stainless steel and wood-trimmed variants alongside its E-ATX support. For noise-conscious builders, the Silencio 600 introduces a noise-trapping maze design with fabric composite front panels that dampen fan noise while supporting dual 180 mm fans. This addresses the ongoing tension between cooling performance and acoustic comfort.

The HAF II 500 revives Cooler Master's airflow-focused heritage with room for two massive 40 mm thick Mighty40 F220 fans in front and a 180 × 40 mm exhaust fan. These cases join limited-edition models featuring industrial-grade 3D mesh that permits air flow while containing sound waves.

Project Air Duct rounds out the announcements with louvered ducting claiming up to 15% air pressure improvements. The company will produce just 1,000 MasterFrame 400 Mesh Gold units and 200 Cosmos Alpha Gold E-ATX cases, making these specialty offerings genuinely scarce.