ASUS 

A21/WHT Asus CS A21 WHT A21 Micro-ATX Case Mid-Tower White Retail

Mfg Part Number:  A21/WHT  
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Price: $160.95
Quantity:
More to Come
Last Updated: Dec 13, 2025
No Sales Tax except these states
, PO and Wire.

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.


Main Specification
General Information
Manufacturer ASUS Computer International
Manufacturer Part Number A21WHT
Manufacturer Website Address http://usa.asus.com
Brand Name Asus
Product Model ASUS A21 Case
Product Name A21 Case
Product Type Computer Case
Technical Information
Motherboard Supported Mini ITX
Motherboard Supported Micro ATX
Number of Fans Supported 7
Fan Size Supported 5.51"
Fan Size Supported 4.72"
Features Dust Filter
Features Cable Management
Window Panel Yes
Bays
Number of Internal 2.5" Bays 1
Number of Internal 2.5"/3.5" Bays 2
I/O Expansions
Total Number of Expansion Slots 5
Interfaces/Ports
Total Number of USB Ports 2
USB Port Details 2 x USB 3.2 Gen 1
Front USB Yes
Total Number of Audio In Ports 1
Front Audio In Yes
Total Number of Audio Out Ports 1
Front Audio Out Yes
Microphone Yes
Physical Characteristics
Color Family White
Product Color White
Product Material Plastic
Product Material Mesh
Product Material Steel
Product Material Tempered Glass
Cooler Type Liquid Cooler
Form Factor Mid-tower
Maximum CPU Cooler Height 6.50"
Maximum PSU Length 8.27"
Maximum GPU Length 14.96"
Height 16.9"
Width 8.7"
Depth 18.3"
Weight (Approximate) 16.09 lb
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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