The LCD has missing characters, and some areas are faintly visible (see photos). Please purchase only if you understand this. TEAC USB Dual Monaural D/A Converter UD-501-B ( ◼️Brand: TEAC ◼️Retail Price: Manufacturer's suggested retail price (excluding tax): ¥110,000 ■Detailed product description: Please search on Google using the following keywords: "UD-501" is a USB audio dual monaural D/A converter that deserves to be called the cutting edge of PC audio, born from the fusion of cutting-edge technology and sophisticated audio circuit design technology. I apologize, but I don't know the details. Thank you.