Technical details:

Dimensions: 230 x 493 x 478 mm (W x H x D)
Color: Black
Material: steel, tempered glass, plastic
Form factor: E-ATX, ATX, Micro-ATX, Mini-ITX
Fan total possible:
3x 120mm / 140mm (front)
3x 120 mm or 2x 140 mm (cover)
2x 120 mm (power supply bay)
1x 120mm / 140mm (rear)
Fan pre-installed:
3x 140mm fans
Radiator mounts:
1x base. 360mm (front)
1x base. 360 mm (lid)
1x base. 120 mm (back)
drive bays:
2x 3.5 inches or 2.5 inches
3x 2.5 inches
Power supply: 1x standard ATX (up to 240 mm)
Expansion slots: 7
I/O panel:
1x power button
2x USB 3.0 (Type-A, USB 3.2 Gen 1, Base. 5 Gbit/s)
1x USB 3.1 (Type C, USB 3.2 Gen 2, Base. 10 Gbit/s)
1x 3.5mm combo connector
Baseline graphics card length: 400 mm
Baseline CPU cooler height: 180 mm
Scope of delivery:
1x Montech AIR 903 Base, Midi Tower
1x accessories