SST-SEQ1B with sound maze soundproofing technique ATX, 2x3.5" 2x2.5", 1*combo audio 2*USB3.0 1*USB3.1 Type-C, Expansion slots: 7+2, 2x140mm front + 1 x140mm rear fan included, 232mm (W) x 493.5mm (H) x 490.7mm (D), 56.2 Liters