Storage wise Sharing large files between mobile devices is easier than using online cloud services, & thereâs no need for a cable to transfer data between the device & a PC. The USB (Universal Serial Bus) OTG standard allows mobile devices to connect directly to supported USB (Universal Serial Bus) devices. Store High-Resolution With smartphones & tablets recording 4k video & taking higher resolution photos, space on these devices gets used up faster than ever. DTDUO3G2 Flash drives let users move files, photos, videos & more â without plugging into a PC â to offload or back up content. Easy to take anywhere DT micro Duo Flash drives are small, lightweight & easy to take anywhere, plus their sleek design complements any mobile device. The included cap protects the micro USB connector from damage. Plug & Play Data Traveler micro Duo Flash drives allow micro USB ports, often used for charging devices, to be used as expansion ports for up to 128GB¹ of additional storage. Ideal for storing large files while travelling, DTDUO3G2 gives plug-&-play functionality to Android tablets & smartphones without micro SD ports. Expanded storage for tablets & smartphones Ideal for moving files on USB (Universal Serial Bus) OTG-capable Android devices that lack micro SD slots Dual interface USB (Universal Serial Bus) Type-A & micro USB Easily move files between your phone & laptop. Key Features Large loop easily attaches to key rings Portable & simple design Compact design with included cap for easy transport. Hardware Interface: USB (Universal Serial Bus) 3.0 Warranty: 5 year Dimension: 26.9 mmx 14.5mm x 101.6mm