This is a Zero DAC from the summer of 2008. It does not have USB. It includes the booklet. It does not include any cords, however. $$$ shipped CONUS and payment must be made through PAYPAL.
This has been sitting unused for quite a while -- probably a year. I tested out the optical input and the headphone output tonight and everything worked very well. Send me a PM if you have questions and thanks for looking!
Edited by J W - 5/1/11 at 11:37pm