I am wondering if it is necessary to buy a USB OTG cable to access a USB stick from an Android (4.4) phone, or if it suffices to take the Micro-USB-to-USB cable that comes with the phone (for charging) and connect it to the USB stick (via a female-female adapter)?

  • Have you tried using the female-female adapter? Did it work? Before, I tried to use a USB hub, and plug the USB stick there; it didn't work. But it works if I just use an OTG cable. – geffchang Nov 9 '13 at 7:29
  • Hi, thanks for helping. I don't have a female-female adapter, that's why I couldn't test it. I also connected the smartphone (Nexus 5) to a (externally powered) USB hub with a USB stick, but it also didn't work. It seems like the OTG cable is required. One thing I'm still wondering: Does the following connection work? Phone - OTG cable - (USB extension) - USB hub - USB stick. My idea would be to also charge the phone while being connected to a USB stick (although I've read that not both might work simultaneously) – Marius Hofert Nov 9 '13 at 11:18
  • I've tried the Phone > OTG Cable > USB Hub > USB stick combination. It didn't work. So, I assume adding a USB extension wouldn't work either. Your best bet would be Phone > OTG Cable > USB stick. – geffchang Nov 9 '13 at 14:14

I would do away with a lot of connections, and just do a Phone > USB OTG > USB Stick connection. An OTG Cable is very cheap anyway. You can get one for a USD1 (at least here in the Philippines), or less.


No. An OTG cable has two of the five pins shorted together at one end. This is how your phone knows whether it is being a USB accessory or a USB host; that is, how it knows whether it's being a USB memory stick or a computer. It doesn't matter what USB adaptors you use: if you're plugging in the accessory end of a USB-OTG cable, or if you use a normal (non-OTG) USB cable, then the device will act as an accessory, not a host.

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