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ASUS A21 Micro ATX PC Case

ASUS ★ 4.0/5 · ItemOracle Score Mid-Range

$70 USD
Price subject to change
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ASUS A21 Black Micro ATX PC Case Supports BTF Hidden Connector Technology, Graphics Cards up to 380mm, 360mm Coolers, & ATX PSUs, Includes Porous Front-Panel mesh and Cable Management Compartment

ASUS A21 micro ATX case with hidden connector support for clean cable management, compatible with up to 360 mm radiators and 380 mm GPUs. Customers note strong ventilation, build quality, and easy assembly in compact form

Highlights

  • hidden connector compatibility
  • large GPU and radiator support
  • ample cable management compartment

Pros

  • clean cable management behind motherboard
  • high compatibility with large GPUs and radiators
  • 40% porous front-panel for airflow and RGB visibility
  • ample space for cable organization

Cons

  • compact size may limit component clearance
  • front-panel mesh may affect dust filtration balance

Best For

  • micro ATX builds
  • compact gaming PC
  • RGB-enabled builds
  • systems requiring tidy cable routing
  • systems with large GPUs
  • efficient cooling-focused builds

Features

  • Supports BTF hidden connectors for clean cable management
  • Accommodates up to 360 mm radiators and 380 mm graphics cards
  • CPU cooler height up to 165 mm and front-panel 40% porous mesh for airflow
  • Rear motherboard area 33 mm wide to organize wiring
  • Includes color-coordinated black or white internal I/O cables

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