I was gifted a Cambridge Audio DacMagic and find I am completely out of my realm. Currently, I've been running an RCA cable direct from single green audio out on my Gateway PC directly to Tape 2 connectors of my receiver. I enjoy watching movies and music videos on YouTube or concerts on PBS/ACL. The cable I am currently using is 25 ft long to run from back of PC around half of my room to my receiver on the opposite side of the room and behind me. Frankly, it has always sounded pretty good to me and, even though trying a DAC in my set up has intrigued me, I always had more pressing audio interests with my $. I believe I can run a 25ft USB 2.0 A Male to B Male Cable, and I think I read that in some cases, USB is the preferred connection to minimize jitters. But a lot of these longer cables appear to be printer cables -- does that matter? Here is one I was considering as the white would blend in with the molding around the base of my room: https://www.amazon.com/dp/B001CX2XC2/ref=psdc_464394_t4_B00183E8WE I also have an SPDIF output and was wondering if I can use a standard optical cable like this one: https://www.amazon.com/KabelDirekt-Optical-Digital-Theater-Playstation/dp/B00RXNU7EG?th=1 If I can use the SPDIF connector on my PC with an optical cable, there seems to be audio/hi-fi applications with this type of longer cable than with the USB. Thanks in advance for shared advice for this digital newbie!