Item Parameters: Voltage input: AC 110V / AC 220V (optional) Voltage output: DC 5V Max output current: 1.2A Output interface: USB / DC 5.5mm/2.1mm Color: black / silver / red Dimensions(W*D*H): 84*96*51mm Net weight: 0.5kg Features: -Great improvement for sound quality: DC 5V output linear power supply, measured ripple is low within 5mV, -the background much purer without noise, especially designed to upgrade all kinds of set-top box / digital player / dac etc. to upgrade the quality of sound and picture. -High-end material for better performance: adopting SIGNAL original E-type 10VA transformer with low magnetic flux leakage, high precision regulated circuit, high-end filter capacitors, and aluminum shell to guarantee the circuit with stable voltage, small ripple and ultra low noise. Package including: 1 x HiFi DC /USB 5V Regulated Linear Power Supply PSU for Set-top Box / Player / DACItem Parameters: Voltage input: AC 110V / AC 220V (optional) Voltage output: DC 5V Max output current: 1.2A Output interface: USB / DC 5.5mm/2.1mm Color: black / silver / red Dimensions(W*D*H): 84*96*51mm Net weight: 0.5kg Features: -Great improvement for sound quality: DC 5V output linear power supply, measured ripple is low within 5mV, -the background much purer without noise, especially designed to upgrade all kinds of set-top box / digital player / dac etc. to upgrade the quality of sound and picture. -High-end material for better performance: adopting SIGNAL original E-type 10VA transformer with low magnetic flux leakage, high precision regulated circuit, high-end filter capacitors, and aluminum shell to guarantee the circuit with stable voltage, small ripple and ultra low noise. Package including: 1 x HiFi DC /USB 5V Regulated Linear Power Supply PSU for Set-top Box / Player / DAC