The ODL-312 Digital Audio Interface by Hosa Technology allows simultaneous transfer between S/PDIF optical and AES/EBU digital audio formats. It is ideal for interconnecting digital audio workstations, recorders, and other digital audio gear regardless of I/O format. One piece of digital audio gear may have only S/PDIF optical (Toslink) connections while another may have only AES/EBU connections (XLR). With the ODL-312, transfers between the two formats remain in the digital realm. The ODL-312 is an indispensable tool for the digital audio recordist! SCMS (Serial Copy Management System) is disabled when transferring from S/PDIF to AES/EBU. This unit is incompatible with the ADAT Optical Interface.