Denon Network SD/USB Recorder Network SD/USB Recorder Dual record feature (records to two media options simultaneously for primary and backup recording). Records to SD/SDHC and USB media in MP3 and WAV (up to 24-bit/96kHz) Relay record feature (continues recording to backup media when primary media is full) File archiving via FTP (Automatic or Timed) with 24/7 record feature