What do I need to buy

[Ianjwebster]

Hi there. I am new to streaming music.... I have a Cambridge 851N and would really like to use Roon. Obviously I will need a USBridge to connect my laptop (containing my Roon Core) to the DAC in my 851N. So I am looking at the Sparky + USBridge + eMMC 16GB + Acrylic Case + 5v PSU for $131 or possible the USBridge Signature Player at $249. My questions:

 

For each what else (if anything) do I need to purchase and/or do to make this work as a USBbridge / Roon endpoint?

What is the difference between the two units?

Any idea when you will have the cheaper option back in stock?

 

Many thanks in advance

 

Ian