Specifications

Model: K1 (004)
M/B Support: Micro ATX, Mini ITX
Dimensions: W200*D447*H400mm
Material: Steel, Plastic, Tempered Glass
Front I/O: USB 3.0 x 2, Audio In & Out (supports HD Audio)
4mm Tempered Glass Window Side Panel: Left
2.5"/3.5" Drive Bays: 2
2.5" Drive Bays: 1 (can add extra 2 screwed on chassis)
Maximum GPU Length: 387mm (w/o front fan)
Maximum CPU Cooler Height: 165mm
Cable Routing Clearance: 24mm
Maximum PSU Length: 160mm
Fan Support
Top: NA
Front: 120mm fan x 2 or 140mm fan x 2
Rear: 120mm 
Pre-install Fan
Rear: 120mm RGB fan x1
Radiator Support
Top: NA
Front: 240/280mm
Rear: 120mm