Perfect working state, excelent condition, extremely quiet no noise (if used with Shanti PSU or iFi iPower 2 or iPower X) No Jitter and bit perfect.  Superb USB bridge, will include OS RoPiee on micro SD, in my opinion, best music software for Roon or UpnP or HQ Player. Saves hustle of installation.

No Box, No manual.  It's impossible to get hold of one.

If you want to pick it up, it's in Greenwich. Otherwise, it will be securely packaged and posted.