The cable is practical and safe because of its bent shape. Expected OTG functionality are operational, at least for what I've tested: + USB Keys 4 and 8 Giga. + SDHC card reader in USB format + Multi memory card readers (SD / CF / ...) case size + External HDD 2.5 "160 Giga Maxtor OneTouch4Mini: of course I had to reformat it to FAT32 (he was in NTFS), and, CAUTION, his diet was made possible by an external battery TeckNet Dual-Port-II that provides iEP380 2 amps, while in feeding the cable "power" of the USB disk from a PC or "feeder" 220-USB, the drive did not have enough juice to start. It's nice to dispose of a big storage space for holiday photos or videos, without having to carry a PC. + USB Mouse (it works, but what for? =). - Failed with a combined keyboard and mouse wireless Logitech Deluxe 660 Cordless Desktop OEM. - Failed with a small USB keyboard orgine Packard Bell who plants and requires restarting the GNote - I'll do it, I will test a keyboard supposed to do that properly. + Camera Nikon D300. Copying photos without problem to the Gnote. - Failed the following configuration: A powered USB hub (220) D-Link DUB-H4 to try to recognize 2 arranged at a time (for Nikon direct copy to disk or USB key).