For sale is a Singxer SU-1 interface in perfection working and cosmetic conditions. It will be shipped in the original box with a power cord and a USB cable. The reason for the sale is that my DAC, unlike the Spring DAC, cannot take full advantage of this excellent interface via the I2S output. It makes more sense for it to go to a user whose DAC can use the I2S connection to realize the full potential of the SU-1. The price includes priority shipping in US. Please add 3% paypal fee or use paypal gift. Thanks.