Chenbro Micom Rack Mount Enclosure RM42300 (RM42300-F1) Product ModelRM42300 Motherboard Support: Micro ATX;ATX;SSI CEB Number of External 5.25" Bays 4 Security Features Intrusion Switch Interfaces/Ports2 x USB 2.0 USB Front Number of Internal 3.5" Bays4 Material Steel Form Factor Rack-mountable