Primary as in most frequently used. Both business and pleasure. If your chain involves many interconnects (like handheld --> wlan --> lan --> dac), pick the one that's closest to the source. Internet sourcers, like streamers, are for after the streaming box, no phone lines or wlan before it. "One-box" means that there are no interconnects between boxes, just internal connects and analog out.
Looking at this forum I predict USB is a clear winner. Business users might disagree. But it's 2020 and life is full of surprises!
Looking at this forum I predict USB is a clear winner. Business users might disagree. But it's 2020 and life is full of surprises!