2. Perfect for connecting USB 1.0, 1.1 or 2.0 peripherals such as USB mice, USB portable hard drives, USB CD-R/RW or DVD-ROM drives and USB 1.1 hubs. The speed up to 5Mbps.
4. Can support multiple USB extensions at the same time, such as camera, mouse, keyboard, computer desk lamp, MP3, recording pen; and can not drive the scanner, printer, mobile hard disk, mobile network card, U disk, and other large USB accessories generally do not support the phone to charge.