The ASUS A21 micro-ATX case offers support for 360 mm radiators, and 380 mm graphics card, with two color options and clean cable management.
- 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.
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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
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360mm
Radiator
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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.
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- 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
- Panoramic View
- Front Panel High-Speed USB Type-C
- Tool-Free Side Panels
- Aura Sync
- ATX Mid Tower
- Aura Sync Support
- Up to 360 Radiator Support
- 3 x Addressable RGB LED Fans & 1 x Rear Fan Pre-installed
- Customized Headset Hook Design
New
- 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
New
- Hidden Connectors
- Broad Compatibility
- Standoff-mounted tempered-glass front panel
- Ample cable management space
New
- Hidden Connectors
- Broad Compatibility
- Capable Cooling
- Cable management space
- Color matching cable
- 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
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- 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
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- 2mm anti-vibration pads
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