Asus A21
Category: Case
Manufacturer: ASUS
Form Factor: Mini-ITX
Max GPU: 400mm
Side Panel: Tempered Glass
Price: $69.99 from Newegg
Asus A21
Form Factor
Mini-ITX
Max GPU
400mm
Side Panel
Tempered Glass
Best price from Newegg
$69.99
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Overview
The ASUS Asus A21 is a MicroATX Mini Tower with support for Mini-ITX motherboards. A tempered glass side panel shows off the build. GPU clearance tops out at 400mm — room for full triple-fan flagship cards — with 170mm of air-cooler headroom. It comes with 2 fans pre-installed and mounts up to 6.
In the mid-range bracket, prioritize GPU and cooler clearance — small cases punish part-picking mistakes. At $69.99 it sits in the mid-range PC case bracket. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Warranty coverage follows ASUS's standard policy — confirm regional terms on the listing.
| Specification | Value |
|---|---|
| Fans | included: 2, maxTotal: 6 |
| Type | MicroATX Mini Tower |
| Drive Bays | 2.5: 2, 3.5: 2 |
| Side Panel | Tempered Glass |
| Form Factor | Mini-ITX |
| Max GPU Length | 400 mm |
| Max Cooler Height | 170 mm |
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