I am speaking about an external SD card, attached by USB C cable; not any internal SD card.

I realize that access speed would not be great, but I am just looking for a cheap way to carry around 256gB or so in my pocket, for quite infrequent access to large files.

Can my Android 7 device recognize that external storage, either alone, or with help of an app?

[Update] The device is a ULEfone Armor 2. I would want to use a USB C cable to connect to an external SD card reader (unless anyone knows of a cheaper way to connect lots of external storage (physically, not requiring network access))

  • 1
    It depends on the phone. Please edit your question and mention what phone you have. Also, I assume you mean the SD card is in a USB-C card reader, but the question makes it sound like you are expecting to attach the card to the cable directly.
    – Dan Hulme
    Dec 4, 2017 at 10:46
  • A phone supporting OTG should recognize it as a regular storage device like any other USB drive, but if you're looking to have it recognize it as a SD card inserted into the device (e.g. so you could adopt it as internal storage) then that's not it.
    – Andy Yan
    Dec 4, 2017 at 11:28
  • I just want to be able to show a few photos or movies from an SD card which I carry around in pocket, along with an adapter/reader & USB-C cable. I think that you are correct, and that OTG will cover it. I was hoping that someone could confirm this.
    – Mawg
    Dec 4, 2017 at 13:53
  • 1
    For that purpose it should work if USB OTG works on your device. I have seen that images (in a DCIM directory structure) from an OTG SD card reader even appear in the gallery app. Just buy a cheap USB 2.0 sd-card reader plus OTG cable and try it out.
    – Robert
    Dec 4, 2017 at 15:10

1 Answer 1


I tried this on a Pixel 3 with a VAVA Usb C hub and it did not work for me, even though other USB devices were recognized correctly through the hub.

  • Welcome aboard, and thanks for the feedback, after all this time :-)
    – Mawg
    Oct 17, 2019 at 5:50

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