Asus A21 Black 90DC00H0-B09010
| Бренд | Asus |
| Form Factor | Mini-ITX (mITX), Micro-ATX (mATX) |
| Fan Support | Top 2x120mm / 2x140mm, Front 2x120mm / 2x140mm |
| Size | 220 × 430 × 465 |
| Ports | AUX, USB 3.0 x2 |