ASUS A21 PLUS Case
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.
  • Hidden Connectors: Compatible with motherboards featuring hidden connectors and maximizes clean cable management for a clutter-free build.
  • Broad Compatibility: A21 PLUS supports up to 360 mm radiators, graphics cards up to 380 mm in length and CPU air coolers up to 165 mm in height.
  • Capable Cooling: A21 PLUS features four ARGB fans for exceptional cooling, and the front-panel mesh is 40% porous to maximize the balance of airflow, dust filtering and RGB visibility.
  • Ample cable management: The A21 PLUS provides a compartment behind the motherboard that is 33 mm wide to keep your wiring tucked away and tidy.
ASUS A21 PLUS Case
ASUS A21 PLUS Black hero shot showing the front and left side with aura lighting
Recommend for you
0.0 out of 5 stars.


  • Broad Compatibility
  • Capable Cooling
  • Cable management space
  • Color matching cable
See less
0.0 out of 5 stars.


  • Quasi-filter mesh panels
  • Industry-leading spatial efficiency
  • Tool-free side panels
  • 32 mm wide cable-management
  • Front panel USB Type-C® support
See less
0.0 out of 5 stars.


  • Industry-leading spatial efficiency
  • Tool-free side panels
  • 32 mm wide cable-management
  • Front panel USB Type-C® support
  • Color-matched cables
See less
0.0 out of 5 stars.


  • Dual Chamber Chassis
  • Panoramic View
  • Front Panel High-Speed USB Type-C
  • Tool-Free Side Panels
  • Aura Sync
See less
0.0 out of 5 stars.


  • Naturally crafted wood materials with FSC certification
  • Air superiority with unique dual 160 x 32mm front ring fan blades
  • Tempered glass side panel unveils personalized essence
  • Left-side panel lock mechanism prevents intrusion
  • Power and Reset button lock and two-section PWM control
  • Integrated Rear Cable Clips keeps system wiring tidy and clean
See less
0.0 out of 5 stars.


  • Naturally crafted wood materials with FSC certification
  • Air superiority with unique dual 160 x 32mm front ring fan blades
  • Left-side panel lock mechanism prevents intrusion
  • Power and Reset button lock and two-section PWM control
  • Integrated Rear Cable Clips keeps system wiring tidy and clean
See less
0.0 out of 5 stars.


  • žNaturally crafted wood materials with FSC certification
  • Air superiority with massive airflow support
  • Two deflectors provide superior thermal performance
  • Ample space for better compatibility
  • Extensive I/O for quick switch and faster transport
  • Front panel IR Dust Indicator with timely reminders 
  • DIY friendly functions to save more time for build-up
See less
0.0 out of 5 stars.


  • Dual-chamber chassis with independent cooling zones for GPU and CPU
  • Boundless panoramic design offers a fully unobstructed view
  • Front panel high-speed USB Type-C® for high-speed data transfers
  • Tool-free side panels
  • Fully modular design
See less
0.0 out of 5 stars.


  • Vibrant System Lighting
  • Magnetic Design
  • Up to 20,000 Hours of Durability
  • Aura Sync
  • Black and white
See less
0.0 out of 5 stars.


  • Hidden Connectors
  • Broad Compatibility
  • Standoff-mounted tempered-glass front panel
  • Ample cable management space
See less
0.0 out of 5 stars.


  • Hidden Connectors
  • Broad Compatibility
  • Standoff-mounted tempered-glass front panel
  • Ample cable management space
See less
0.0 out of 5 stars.


  • Extreme cooling with four 140x28 ARGB fans
  • Interchangeable side panel
  • Removable top panel
  • Support motherboards' hidden connectors design
  • Support 360 AIO on top and 40-series graphics cards
See less
previous image
next image
Related products
previous image
next image