FEATURES:LIAN LI O series products have been registered appearance patent.
System FanFan frame cover has three 120mm fan.Fan holes in the back for optional 120mm or 140mm Fan.
HDD spaceHDD rack can support three 3.5″ drives and one 2.5″ drive.
On the MB tray:Where you can mount three 2.5″or 3.5″ drives.(Occupies PCI slot space)
Behind the MB tray:Drive rack in the behind of the MB tray,It supports one 3.5″ and two 2.5″ drives or three 2.5″ drives or two 3.5″ drives.