... for either home or professional audio switching..... Analog to Digital Audio ConverterIntroductionThis Analog to Digital Audio Converter is designed for ... 80Storage Humidity5% to 90 % RH (no condensation)Power Requirement External Power Supply5V DC@1APower Consumption0.5 watts (max)Regulatory ... ,CE,ULPower SupplyUL,CE,FCCAccessories Adapter AC Power AdapterUS standard, UK standard and so onUser ManualEnglish ...