Features:
USB2.0/ Mini USB2.0/ SD/ Micro SD/ AV ports (or slots) available.
But at one time can use 1 port(slot) only.

Here are the tips for this products:

1. Pictures and videos can be imported from iPhone directly.
iPhone 3GS, iPhone 4 can only support AV out.

2. Pictures and video can be imported from USB flash disk directly.
A. Pictures and videos must put in the folder named "DCIM".
B. Can not read seperate folder built in DCIM directly.
C. Supports MOV format; Also can only import those formats supported by iPhone and iPad.

3. Can use Mini USB to connect computer by USB cable and synchronize with iTunes.
Can use Mini USB to charge iPad with 10W adapter through USB cable.

4. Can connect SD card, import pictures and videos directly.

5. Can connect Micro SD card and TF card, import pictures and videos directly.

6. Can conenct TV by normal AV cable, import pictures and videos directly.
When AV output pictures to TV, can display the photos in the slide mode and
Support background music.
(can not output videos played by third-party software like VLC. )

Others:
1. USB Card Reader, need under 150MA.
2. Failed to connect with USB HDD, even with additioanl power.

New function:
If Jailbreak, can be used without restriction by Apple.
Can fulfill the following:
Check/ open/ copy files.
import or export office files like. Doc/. Xls/. Ppt/PDF.
And some video formats which are not supported by Apple.