Sorry, mistake... :(

https://www.vinshineaudio.com/product-page/denafrips-ares-r2r-dac

Here is an almost new unit... :) https://www.audiogon.com/listings/solid-state-oppo-sonica-dac-preamp-streamer-2017-07-29-preamplifiers?acq=fuel&keyword=preamps&creative=shopping&gclid=EAIaIQobChMIyZnBroq51QIVhYV-Ch17qwbJEAYYAiABEgLl3PD_BwE

This guy is crazy!!! He is suggesting "By-Passing" the main fuse!!! Unbelievable!!!        http://www.tweakaudio.com/EVS-2/Schiit_mod.html

Anyone install Windows 10 yet and install the Marantz HD-DAC1 Driver??? 

Sign-Up or Sign-In here for Free Hi-Rez music files... http://bluecoastmusic.com/free-downloads

1=6.3mm 2=SMC 3=3.5mm 3=XLR  

Is this a good deal???       http://www.ebay.com/itm/AMR-DP-777-SE-DAC-preamp-Stereophile-Recommended-120V-230V-5-500-MSRP-/121679111785?pt=LH_DefaultDomain_0&hash=item1c54a3e669

 The USA iFi Audio distributor is Avatar Acoustics... http://www.avataracoustics.com/home.html

Excellent information at the software website... Things to disable and things to never disable were especially interesting...  http://www.thesycon.de/deu/latency_check.shtml

I doubt if anyone here wants to force you to try a Power Cord, but if you desire, The Cable Company has a cable lending library of over 60 brands of cables that you may borrow and test in your system... http://www.thecableco.com/content.aspx?iid=5777

According to Wiki you are correct...   " A USB 3.0 Standard-B receptacle accepts either a USB 3.0 Standard-B plug or a USB 2.0 Standard-B plug. Backward compatibility applies to connecting a USB 2.0 Standard-B plug into a USB 3.0 Standard-B receptacle. Though, it is not possible to plug a...

Just need an adapter... ;)   

Looks like we are going to have to use one of these Wireworld Starlight USB 3.0 Cables... Or another brand... ;)

    EDIT: The PDF file marked Nano needs to be opened and instructions are listed... All set...    EDIT #2... This version sounds better than the last version...;)

Like I said, I did get a temporary fix by switching USB cables, but it was only temporary... I forgot to mention I also have the iFi iUSBPower Supply in the above system...

You appear to have a USB port Software problem... A problem that plagues your iFi Audio and AMR Audio lines... :(   Every time I start my computer and try to use my Micro iDSD I have to Unplug/Re-Plug the USB Cable... I am an iClub member and I have made a ticket to my iClub Rep ... I did try...

Showing in Munich today... https://www.facebook.com/photo.php?fbid=861545807240515&set=ms.c.eJw9zNENgFAMQtGNDLTF4v6LmVhfP0~_4wTdVcnUURF7~_nQ~_a7TXU6dJxTh~%3BHnH17zL49vj~%3BHC~%3BR5Fp0~-.bps.a.456475541080879.103534.100001553101914&type=1&theater

Moniker: RadioWonder737 Answer D: 781

Three Free DSD music files from Blue Coast Records... Just sign-in or sign-up and download the 2.8 MHz files... Unpack after downloading... Plays great on my Micro iDSD... http://audiogate.bluecoastrecords.com/

Quiles & Cloud Acoustic Music Performed Live in a Demonstration for Blue Coast Music from RMA 2014... https://www.eventbrite.com/e/blue-coast-music-announces-free-dsd-downloads-featuring-quiles-cloud-from-rocky-mountain-audiofest-registration-14388561575   Sign Up For Five Free DSD Music...

I don't see one Octa T-Shirt at this iClub Dinner...   

Not everyone is going to show up in their Octa T-Shirt at an iFi Audio event... So an iFi Audio iClub ID Card would be a great idea...

Sounds like you need a "Man Purse"... LOL... Or it could be what you suggested... ;)

"it" is more likely an iClub ID Card... So you can flash it when you are invited to an iFi Function like the last iFi Dinner or when you show up at an iFi Audio Show and demo the latest iFi Audio gear...