The cable I connected directly to my Samsung Galaxy S3. Message: "USB - cable is connected". I recently bought at Tchibo the wireless keyboard with USB connector.
The wireless connector into the USB - cable plugged. Message: "mouse connected".
The keyboard on. External Keyboard Helper Pro (paid program) started on the S3. TextMaker Mobile Beta started. Entered a text and Attention!
everything works. I'm excited!!!!!
This is something I love. When I buy something, try out and it works right the first time.
The same I (formatted FAT32) with the card reader of Tchibo and a 2GB SD card and Andro Explorer (paid program) attempts. The OTG cable you yourself can read or launch files on the SD card.
Greeting
Gerhard