Very low noise linear power supply that is perfect for powering your network players, Ethernet switch or DAC.  A great upgrade from your current power supply.  Choose the voltage you need (1VDC increments) between 5VDC and 9VDC. This supply is 25W. This is only enough power for small devices network players, Ethernet switch, DACs, etc. If you want to power something larger or something that requires a higher voltage like our sonicTransporter i5 or Roon Nucleus you will need a more powerful supply like our 100W Linear supply.  Recommended for: Chord Qutest DAC - Select 5v. All required cables are included. Raspberry Pi - Select 5v. All required cables are included. Specifications Input voltage: 110V AC or 220V AC (select when you order) Output voltage: 5VDC - 9VDC (select when you order) Output connector: Barrel jack (5.5mm OD x 2.1mm ID) Output amperage: Use Amps = Watts/Voltage to calculate this (see below) Toroidal transformer: 25VA Size: 4" x 2" x 6.5" (W*H*D) Weigh: 2.5lbs Fuse: 5mm x 20mm Slo-Blow 2A   What's Included Linear power supply .75m DC power cable with 5.5mm OD x 2.1mm ID connector .5m US prong to IEC 60320 AC cord Micro USB adapter (5V version only)  DC cable adapters for popular input plugs   Notes The output voltage can be adjusted, from 5 to 9 volts, using the small screw on the back. The max amperage of this supply can be calculated using Amps = Watts/Voltage.  Since our Linear Power Supply is 25 Watts, adjusting the Voltage will change the Amps.  For example, our Linear Power Supply set at 5v would supply a max of 5 amps (25 watts /5 volts = 5 amps)   DC Cable Adapters Plug Size A 6mm x 4mm B 6.3mm x 3mm C 5.5mm x 2.5mm D 5.5mm x 2.1mm E 5.5mm x 1.7mm F 4.7mm x 1.7mm G 4mm x 1.7mm H 3.5mm x 1.35mm