This is the well know Benchmark Dac 1 with USB. I brought it brandnew from Benchmark about 2 yrs ago. It is a great dac and the USB option started me off on the computer music server route. Its is highly versatile; almost a pre-amp on it’s own.
I have all the original box and manual and it’s been well care for. Please check out my feedback on Audiogon and Ebay – it’s under my same tag - geraldedison; so buy with confidence. I don’t have pictures yet, but can provide if needed.