Mini-ITX, Micro-ATX, ATX, E-ATX, Expansion Slots 8, Drive Bays: 1 x 5.25”, 2 x 2.5/3.5 combo, 2 x 2.5 SSD, I/O Port: USB 3.1 Gen 2 Type C x 1, USB 3.0 x 4, Fan Speed RGB control buttons, Audio In/Out, Pre-installed Fans: 140mm x 2, 1200RPM, 140mm x 1, 1200RPM, Bottom Mount, ATX PS2