Great sound, undeveloped driver for Win10, disappears from time to time, need to reinstall, interferes with Skype, etc. no feed back, no way to contact the producer, needed to change to Topping D10 (Massfrop). So far so good.
Thank you for your comment. Since DACport Slim was released, the Windows 10 driver has long been fixed. This revision of DACport HD is much improved in production, we learned a lot from earlier batches.