Combined internal architecture, wide space, no pressure for later hardware expansion; Use the wall mount network cabinet to maximize available space for retail locations, classrooms, back offices, network cabinets, and other locations where space is limited Special design of fixing PCI card in the system 7 pieces max; This rugged 4 U rack drawer supplies additional storage space for mission-critical hardware, tools, network, server or audio / video accessories Front door with key lock for better security;Front door foam filter design for minimize dust inflow;Motherboard Compatibility: 12 x 9.6 ATX/M-ATX/Mini-ITX (smaller than 305 mm245 mm) Constructed with cold-rolled steel, the sturdy IT-grade storage rack drawer ensures long term durability; Dual USB 2.0 connector in front panel; The server cabinet is designed with vents to optimize airflow and avoid critical IT equipment overheating It locks securely with the included keys to help prevent damage, tampering or theft; The locked door ensures the security of data and equipment.