I emailed Kingwa the owner of Audio-gd. He asks for our support in reporting which Audio-gd DACs work with USB OTG. At this moment we have one report, that the Audio-gd
NFB-16 (USB DAC/amp) works with the Samsung Galaxy Note II. Here is the full range of products http://www.audio-gd.com/Products-EN.htm and they are of course well regarded here at head-fi.
He can get a cable http://www.ebay.com/itm/USB-Micro-b-male-to-Mini-b-male-data-cable-lead-adaptor-/261135697830 and test his DACs. Many of them are designed with the same "USB32" chip. Danba or anyone who speaks Chinese may want to email him directly. Their contact form lists their email address http://www.audio-gd.com/Contact-EN.htm Of course they can handle English but its faster and more accurate to use Mandarin.
Desktop DAC will not use USB mini B. Can anyone point me at a cable that is USB-micro-B-male to USB-standard-B-male?
Edited by Toe Tag - 12/21/12 at 5:08am