It is a USB-connected bus-powered D/D converter that uses C-Media's “CM6642” as the digital audio control IC and is compatible with high-resolution sound sources (maximum 24 bit/192 kHz) (Takahashi Nobuyuki)
Maintenance information: 2025.7.4 operation confirmed
Accessories: original instruction manual box
Main specifications: digital input: USB TypeB terminal USB 1.1/2.0 compatible, USBAudioClass 1.0/2.0 compatible digital output: coaxial digital audio output (COAXIAL) optical digital audio input (square) compatible format: PCM maximum 24 bit 192 kHz W40 x H25 x 81 mm 90 g