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SanDisk Ultra Dual USB 3.0 OTG Flash Drive Review

USB On The Go (OTG) is a useful feature in today’s smartphones like android, iPhone and Windows Phone. Using an OTG flash drive helps us to quickly transfer data from our smartphones without using a desktop computer. Data taken from one android phone can be transferred to other devices like iPhone with this mobile pen drive. Prior to the launch of SanDisk Ultra Dual USB 3.0 flash drive we were using the normal pen drives with an OTG cable. The data transfer is slow in these older storage devices. But SanDisk Dual USB 3.0 OTG flash drive can deliver read speeds up to 130 MBps on USB 3.0 port and write speeds up to 16 MBps.

SanDisk Ultra Dual USB 3.0 [16 GB] OTG Flash Drive Review

1. Size And Design:

The SanDisk Ultra Dual flash drive has a small size. It has a full size USB 3.0 port on one side and microUSB connector on another side. In between there is a slider to bring these connectors out. Only one connector can be used at a time. The flash drive works on both android and desktop computers. It also works on the MAC OSX.

sandisk ultra dual usb 3.0 otg flash drive review

2. Compatibility:

SanDisk Ultra Dual OTG flash drive is compatible with any smartphone having the OTG support. You can check your android phone for OTG support, please refer to this article before buying.

3. Speed Test:

We have done storage benchmarking tests and we have got read speeds of up to 109 MBps and write speed up to 16 Mbps. While using the file copy in Windows 7 we got read speeds upto 117 MBps.

sandisk dual usb 3.0 otg speed test

Note: The SanDisk Ultra will work work as a normal pen drive on your computer with very slow speeds if the ‘Legacy USB support’ is enabled in BIOS settings. Please read this article to fix this problem.


  • No need of OTG cable.
  • Plug and Play operation.
  • Works on smartphones and computer with Dual USB connecters.
  • Very small size.

Buy Now

To buy the SanDisk Ultra Dual USB OTG 3.0 32 GB click the link below.

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