Danny –
That unit is called the “Peavey USB-P DI/Format Converter”. It’s carried by Guitar Center, Musician’s Friend, B & H Photo, and others. It’s very small and light-weight. From the laptop (with BIAB) to the Peavey unit, which is on the floor below the mixer, I use a cable that was described (to me) as one that’s often used to connect a computer to a printer. It has a USB on one end (the end from the computer) and a small plug on the other end that attaches to the Peavey unit. Don’t know what you call that. I just happened to have a cable like that and it works. One would need to look at the input on the Peavey unit to determine what kind of cable is required. The Peavey unit has two XLR outputs (female) that I run directly to mixer inputs. I use balanced cables for either XLR mixer inputs, or ¼” inputs. Both types of cables work well. Then, of course, running cables from the mixer to powered speakers. The unit worked immediately, with no loading of software required. My impression is that sound quality is improved, as well as feeling more secure about using a USB output for audio, rather than a 1/8” cable from the headphone output of the laptop.