This is hard-disk recorder. It mounts 640MB and is able to extend to 4GB with SCSi. It mounts digital equalizer. It is in good condition but no manual and no power cable. It is possible to use for visual things. We also have a DM-80. Recording format 16 bit liner sampling rate 48kHz,44.1 kHz 、32 kHz. 18bits A/D conversion, processing 24bits, S/N 92db, SMPTE time code, MIDI time code clock analog I/O: balance TRS, 1/4" phone, +4 dBm Input x 4, Output x 4, head phone out, digital I/O: IEC-958, digital coaxial input x 1, Output x 2, control I/O: RMDB x 1, SCSI x 2 MIDI x 2, SMPTE LTC x 2, digital RGB out x 1, S-Video out x 1, Video out x 1, ASCII Keyboard x 1, Footswitch x 1