Check the listing for details. Freqport FreqlnOut FO1 Hardware Interface. Condition: New. Listed at 599.00 USD. All the Hardware; None of the Hassle Many Sweetwater studio engineers consider our outboard gear to be among our most prized possessions. If we're being completely honest, though, we must admit that cabling and routing can be a drag. That's one of the reasons why we're delighted about the FreqInOut Fo1! This ingenious device is a user-friendly hardware interface with four audio inputs and outputs that connect to a computer via USB-C; it also lets you seamlessly integrate your own precious outboard audio gear directly into your audio software via its hardware matrix. The FreqInOut Fo1 hardware interface effectively removes the complexity of routing and cabling setup, removes inconsistent timing issues when recording, and enables you to process multiple signals simultaneously.