Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Ports & interfaces | |
| Audio input | Yes |
| Audio output | Yes |
| Microphone in | ![]() |
| USB 3.2 Gen 1 (3.1 Gen 1) ports quantity | 2 |
| Combo headphone/mic port | ![]() |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB Type-C ports quantity | 1 |
| Weight & dimensions | |
| Weight | 7.3 kg |
| Height | 465 mm |
| Width | 220 mm |
| Depth | 430 mm |
| Storage | |
| Card reader integrated | ![]() |
| Number of HDDs supported | 2 |
| Storage drive interface | SATA |
| Number of storage drives supported | 3 |
| Supported storage drive interfaces | SATA |
| HDD/SSD combo cage | ![]() |
| SSD form factor | 2.5" |
| Packaging data | |
| Package weight | 8.4 kg |
| Package depth | 288 mm |
| Package height | 493 mm |
| Package width | 525 mm |
| LED controller | ![]() |
| Cooling | |
| Cooling | ![]() |
| Number of front fans supported (max) | 3 |
| Front fans diameters supported | 120,140 mm |
| Rear fans diameters supported | 120 mm |
| Top fans diameters supported | 120,140 mm |
| Number of rear fans supported (max) | 1 |
| Number of top fans supported (max) | 3 |
| Liquid cooling capability | ![]() |
| Rear radiator sizes supported | 120 mm |
| Front radiator sizes supported | 120,140,240,280,360 mm |
| Rear radiator installed | ![]() |
| Front radiator installed | ![]() |
| Top radiator installed | ![]() |
| Top radiator sizes supported | 120,140,240,280,360 mm |
| Fan speed control | ![]() |
| Other features | |
| Expansion slots | 5 |
| Power LED | ![]() |
| On/off switch | ![]() |
| Screws included | ![]() |
| Design | |
| Type | PC |
| Rack mounting | ![]() |
| Cable lock slot | ![]() |
| Product colour | Black |
| Illumination | ![]() |
| Cable management | ![]() |
| Reset button | ![]() |
| Supported motherboard form factors | micro ATX, Mini-ITX |
| Anti-dust filter | ![]() |
| Number of 3.5" bays | 2 |
| Suitable for | Gaming |
| Transport wheels | ![]() |
| Side window | ![]() |
| Number of internal 3.5" bays | 2 |
| Maximum CPU cooler height | 16.5 cm |
| Maximum graphics card length | 38 cm |
| Number of expansion slots | 5 |
| Maximum PSU length | 21 cm |
| Number of 2.5" bays | 1 |
| On/off button | ![]() |
| Tempered glass panel(s) | ![]() |
| RGB control button | ![]() |
| Power supply | |
| Power supply location | Bottom |
| Power supply included | ![]() |
| Supported power supply form factors | ATX |
| EAN | 4711387111475 |
| Warranty | 1 year |
The ASUS A21 is a micro-ATX chassis engineered for compact system builds that do not compromise on cooling potential. Its white exterior and tempered glass side panel offer a clean, minimalist aesthetic for showcasing internal components. The case is constructed to support high-performance hardware configurations while maintaining a manageable footprint suitable for various setups. With its five expansion slots, it provides adequate room for peripheral cards and system upgrades.
The internal layout emphasizes thermal management, with support for radiators up to 360mm in both the front and top positions. This allows for flexible liquid cooling solutions often found in larger mid-tower cases. Component compatibility is robust, accommodating CPU coolers up to 165mm in height and standard ATX power supplies up to 210mm in length. Integrated cable management features are included to assist in maintaining unobstructed airflow and a tidy interior.
Key Features:- Supports Micro-ATX motherboards
- Dimensions: 220 x 465 x 430 mm
- Chassis construction with a tempered glass side panel
- Front I/O includes 2x USB 3.2 Gen 1 Type-A and 1x combo audio jack
- Accommodates up to two 3.5-inch and one 2.5-inch drives
- Allows for CPU coolers up to 165 mm in height
- Provides radiator support for up to 360 mm in the front and top
- Fits standard ATX power supplies up to 210 mm in length
Estimated delivery: 27.11 - 30.11
Today: 10:00 - 18:00
Estimated delivery: 27.11 - 30.11
Today: 09:00 - 17:00
Estimated delivery: 27.11 - 30.11
Today: 10:00 - 17:00
Estimated delivery: 27.11 - 30.11
Today: 10:00 - 18:00
Estimated delivery: 27.11 - 30.11
Today: 10:00 - 17:00
Estimated delivery time: 27.11 - 30.11
Estimated delivery time: 28.11 - 30.11
Estimated delivery time: 27.11 - 29.11
Estimated delivery time: 28.11 - 30.11
Estimated delivery time: 28.11 - 29.11
Estimated delivery time: 28.11 - 29.11


