ASUS A21 PLUS Black
Code: A21PLUS-BRelated products
Product detailed description
ASUS A21 PLUS Black is a modern microATX computer case designed for clean gaming systems, home computers and compact high-performance builds with an emphasis on airflow and easy assembly.
The case supports Mini-ITX and Micro-ATX motherboards, including BTF models with hidden connectors, enabling cleaner cable management and less visible cabling.
The black finish with a transparent side panel showcases the components, RGB lighting and the overall appearance of the system.
The front mesh panel is designed for good airflow while maintaining visibility of ARGB effects. ASUS specifies 40% porosity to balance airflow, dust filtration and appearance.
Four 120mm ARGB fans are pre-installed as standard – three at the front and one at the rear. This gives the case active cooling and a more pronounced lighting effect right out of the box.
For more powerful cooling, a radiator up to 360 mm can be installed at the front or top, or a 120mm radiator at the rear position.
Inside, there is enough space for a graphics card up to 380 mm long, an air CPU cooler up to 165 mm high and an ATX power supply up to 210 mm long.
For cable routing, the case provides 33mm of space behind the motherboard, making clean assembly easier and helping improve airflow inside the system.
Storage options include two combined 2.5"/3.5" drive bays and one separate 2.5" SSD position.
The front I/O panel offers two USB 3.2 Gen1 ports, a separate microphone connector and a separate headphone connector.
- Product type: PC case
- Model: ASUS A21 PLUS
- Product code: 90DC00H0-B19010
- Case form factor: Micro Tower / microATX
- Motherboard support: Mini-ITX, Micro-ATX, BTF motherboard compatible
- Side panel: transparent side panel
- Front panel: mesh panel with 40% porosity
- Pre-installed fans: 3× 120mm ARGB front, 1× 120mm ARGB rear
- Front fan support: 3× 120 mm or 2× 140 mm
- Top fan support: 3× 120 mm or 2× 140 mm
- Rear fan support: 1× 120 mm
- Front radiator support: 360 mm, 280 mm, 240 mm, 140 mm, 120 mm
- Top radiator support: 360 mm, 280 mm, 240 mm, 140 mm, 120 mm
- Rear radiator support: 120 mm
- Maximum graphics card length: 380 mm
- Maximum CPU cooler height: 165 mm
- Maximum PSU length: 210 mm
- Drive bays: 2× 2.5"/3.5" combo bay, 1× 2.5" bay
- Expansion slots: 5
- Front I/O: 2× USB 3.2 Gen1, 1× microphone, 1× headphones
- Cable management space: 33 mm behind the motherboard
- Dimensions: 220 × 430 × 465 mm
- Weight: 8.1 kg
- Color: black
- Use: gaming PCs, microATX systems, BTF builds, ARGB systems, compact work computers
ASUS A21 PLUS Black is a suitable choice for users who want a compact microATX case with a clean appearance, good cooling support, four ARGB fans included as standard and the option to build a modern system with a BTF motherboard.
Additional parameters
| Category: | Micro-ATX PC cases |
|---|---|
| Warranty: | 24 months (Company 24) |
| EAN: | 4711387508084 |
| Color: | Black |
| Maximum graphics card length: | 380 mm |
| Standard motherboard: | Micro-ATX, Mini-ITX |
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ASUS represents a combination of high technology, precision design and reliable performance. For more than three decades it has been among the most important manufacturers of computer components, notebooks, monitors and gaming equipment. Its products are known for quality, innovation and attention to detail.
In the game segment ASUS became famous mainly by series ROG (Republic of Gamers) and TUF Gaming, setting performance and resistance standards. The brand has gained the confidence of professional players and demanding users worldwide thanks to continuous development and technical innovation.
ASUS is synonymous with reliability, high quality processing and modern design. Each product is designed to provide maximum performance and bring users an exceptional experience - whether it is work, acting or everyday use.
| Manufacturing company : | ASUSTeK Computer Inc. |
|---|---|
| Address : | No. 15, Li-Te Rd., Beitou Dist., Taipei City 112, Taiwan |
| E-mail : | info@asus.com |
| EU representative of the manufacturer : | ASUS Computer GmbH |
| Address of the EU representative : | Harkortstr. 21-23, 40880 Ratingen, Germany |
| Email of the EU representative : | support@asus.com |