Rack mount sheet metal chassis, cold rolled steel with matte black powder coating, scratch and rust resistant. Equipped with rack mounting flanges for easy installation in cabinets. Long louver vents on inner sides for heat dissipation. Front panel pre-cut with various round and square cutouts for connectors. Spacious interior for PCB and power module assembly. Ideal for industrial controllers and signal converters. Custom sizes, cutouts and coating colors available.