USB audio interface with microphone plugin support. Power is supplied via the USB cable. - Brand: EDIROL - Model: UA-1EX - Connectivity: USB Thank you for viewing. This is the Roland EDIROL USB audio interface UA-1EX. It's a simple and compact cable-type USB audio interface. You can record and play back audio just by connecting the USB cable to your computer. It seems suitable for digitizing analog audio sources like records and cassette tapes by connecting them to a PC. It's noted that it's convenient to have input/output volume controls on the UA-1EX to control connected audio devices. I used it to convert electone performance data to WAV files and create CDs. I haven't used it since my electone got an audio function. I don't know the details as I haven't used it for other purposes. Includes the instruction manual and CD-ROM. The license agreement and registration card are not included. I'll include a memo with the product number. It has been used for many years, so there are minor scratches, but it still works. Power has been confirmed. Thank you.