TEMPERED GLASS I/O Panel:Real USB3.0 x1+ Real 2xUSB2.0, HD Audio amp; AC 97 Structure: 410(L)* 190(W)* 465(H)mm Case: 435(L)x190(W)x500(H)mm Material:Top Cover :Metal Front panel:Metal With 2 LED Light in the top transparent decoration; Side Board :SPCC 0.60mm internal structue :SPCC 0.50mm External:5.25 #34;*2 Internal:5.25 #34;*2 + 3.5 #34;*2 + 2.5 #34;*4 Left side board: tempered glass side windows Rigt side board:Normal side board; Converted Rack:2 sets of Tool-free Rack for 3.5 #34; HDD Cord design:Back plate wire routing Expansion Slots:Standard x 7 Cooler fan:without fan