Carcasa ASUS A21 PLUS Mid Tower ARGB ALB, Tempered Glass, Sloturi Expansiune 5, Drive Bays: 2x3.5" sau 2x2.5" 1x2.5", Ventilatoare Suportate: 7 (spate: 1x120mm, fata: 3x120mm sau 2x140mm, sus: 3x120mm sau 2x140mm), Ventilatoare Incluse: 4 (spate: 1x120mm, fata: 3x120mm), Format Placa De Baza Suportat: MIni-ITX, Micro-ATX, Lungime Maxima Placa Video: 380mm, Inaltime Maxima Cooler Procesor: 165mm