TechVent honeycomb panels from Leader Tech include standard and custom sizes designed to corral the release of unwanted radio-frequency interference (RFI) through ventilation holes in equipment. The TechVent honeycomb shielding panels are formed with a rigid aluminum vent frame in multiple thicknesses and can be specified with captive fasteners or pre-drilled holes to accommodate your specific mounting requirements. Suitable for both indoor and outdoor applications, they provide as much as 125 dB shielding effectiveness (SE) for electric-field (E-field) emissions and as much as 70 dB SE for magnetic-field (H-field) emissions.