For sale is a Singxer SU-6. I had purchased it to go between my desktop computer and the Holo May dac, but I preferred the sound from the galvanically isolated usb input of the Holo May over the i2s of the Singxer. Comes with the box and power cord. I'll post pictures of the unit later tonight. In completely working condition. I purchased it brand new from Shenzhen Audio. There are two scratches on the top of the unit. I've posted a picture indicating where. Pet free/smoke free environment.