The iFi Zen DAC Signature, which achieves high sound quality, is a set of a DAC and Zen CAN Signature that supports USB connection and has headphone and RCA outputs. When listening with headphones that support balanced connection, the detail of the sound was refined, and I was able to listen with a more immersive feeling. I don't have time to listen to music leisurely due to work and childcare, and it's a waste of a treasure because I can't use it at all, so I decided to let it go to someone who can use it. There is stickiness on the power plug due to aging, but there is no problem with use. As a bonus, I will include a USB cable for digital input. (I think I bought it for about 5,000 yen.) There is no box at the time of purchase. - Brand: iFi - Model name: Zen DAC Signature set 6XX - Input terminals: USB, Coaxial, Optical - Output terminals: Headphone output, RCA output - Accessories: Genuine 4.4mm to 4.4mm cable