Maximum GPU Length Up to 2.5 Slots; Motherboard Supporting Mini-ITX, MicroATX, and ATX; Case Form Factor Mid-Tower Material SGCC Steel and Tempered Glass 50 CM Extension Slot Machines 7. Two internal 2.5-bay bays plus one internal 3.5-bay bay 3.5": Included are 2+1 140mm fans. Not one Fan Mount, 120mm Front: two 120/140 mm One 120mm and one 140mm top (including the Aer F120 case version) Rear: 1x 120mm (1 version of the Aer F120 case included) One USB I/O interface 3.1 Type-C Gen 2 One USB 3.1 Type-A Gen 1 One headset with audio Jack Front Internal I/O header for one USB Internal Header 1x USB 3.1 Gen 2 Internal Header 1x USB 3.1 Gen 1 2.0 Header Internal One link to the specifications for an HD audio header case Two integrated addressable LED strips