- Broad Compatibility: A21 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: The front-panel mesh is 40% porous to maximize the balance of airflow, dust filtering and RGB visibility.
- Ample cable management: The A21 provides a compartment behind the motherboard that is 33 mm wide to keep your wiring tucked away and tidy.
ASUS
A21 Case
Discover Hidden Potential
The ASUS A21 is a PC case crafted for minimalist mainstream DIY PC builders, with support for a variety of AIO coolers and graphics cards, and plenty of airflow potential to keep things running smoothly.
Broad Compatibility
Despite being a micro-ATX case, the A21 still supports up to 360 mm radiators, graphics cards up to 380 mm in length and CPU air coolers up to 165 mm in height, giving builders plenty of options to assemble their next PC.
Support
-
360mm
Radiator
-
380mm
Graphics Card Length
-
165mm
CPU Cooler Height
Capable Cooling
The front-panel mesh of the A21 is 40% porous to maximize the balance of airflow and RGB visibility. Users can add up to three 120 mm fans to this section of their build to solidly manage system temperatures.
40 % porosity
Ample Cable Management
The A21 provides a compartment behind the motherboard that is 33 mm wide to help you keep your wiring tucked away and tidy.
Color-Coordinated Builds
Both variants of the A21 come with color-coordinated black or white internal I/O cables to compliment your build theme.
- Quasi-filter mesh panels
- Industry-leading spatial efficiency
- Tool-free side panels
- 32 mm wide cable-management
- Front panel USB Type-C® support
- Industry-leading spatial efficiency
- Tool-free side panels
- 32 mm wide cable-management
- Front panel USB Type-C® support
- Color-matched cables
- Dual Chamber Chassis
- Panoramic View
- Front Panel High-Speed USB Type-C
- Tool-Free Side Panels
- Aura Sync
- 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
- 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
- Air superiority with massive airflow support
- 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
- Effortless maneuvering with built-in mobile wheels
- IP68 water and dust resistance
- MIL-STD-810H 516.8 drop resistance
- NVMe & SATA dual interface
- Q-Latch DIY-friendly design
- USB-C ® 3.2 Gen 2x1
- Advanced FDB bearing with 76 CFM high airflow
- Double layer LED array
- Black and white editions
- 2mm anti-vibration pads
- Aura Sync
- Advanced FDB bearing with 76 CFM high airflow
- Double layer LED array
- Bundled ARGB hub enable exclusive lighting modes
- Black and white editions
- Aura Sync
- Extreme cooling with an extra-thick 28mm frame
- Class-leading static pressure at 2.75mm H2O
- Due side patterns on the frame
- Available in black and white and in standard and reverse orientation
- Aura Sync compatible
- Extreme cooling with an extra-thick 28mm frame
- Class-leading static pressure at 2.75mm H2O
- Due side patterns on the frame
- Available in black and white and in standard and reverse orientation
- Aura Sync compatible
- Extreme cooling with an extra-thick 28mm frame
- Class-leading static pressure at 3.3mm H2O
- Due side patterns on the frame
- Available in black and white and in standard and reverse orientation
- Aura Sync compatible
