This high quality insert is for use in all Keystone Wall Plates.FEATURES AND BENEFITS:• RoHS Compliant• Recessed hex nut does not allow for jack rotation• Material: High Impact Flame Retardant Plastic• Operating Temperature (Celsius): -55°C to 155°C• Output Impedance: 75 ohm• Product Fits Into: Keystone Cutout• RatedVoltage: 500V Peak Voltage Rating• CSA Listing Info: CAN/CSA-C22.2 No. 182.4-1990• CSA Standard: Yes• UL Listing No: ANSI/UL 1863• UL Standard: Yes• UN SPSC: 39121704