Originally posted by jimt The IPad's have a nifty little dongle that allows you to read (but not write) from either SD cards or USB sticks. My Asus pad has the same kind of dongle as well. The accessory keyboard for my Asus has a USB port where I can plug the camera in directly. If there are accessory keyboards for your tablet, you may have an extra slot or port on them.
Good luck
The 'dongle' you refer is USB-OTG ('on the go', I do not know how they came up with that). Most tablets and smart phones allow you to plug into a computer's USB port, both for charging and for turning the mobile device into an external USB storage device. This is USB client mode. USB-OTG is a way to turn that connection on your mobile device in to USB host mode ... at least a limited version of USB host mode. Typically USB-OTG will support keyboards, mice, and storage devices formatted as FAT (like SD cards) and sometimes NTFS (USB hard drives). Most are restricted to a read-only mode.
Not all tablets or phones support USB-OTG, so check your documentation and/or visit a user forum for your mobile device before you waste money on a USB-OTG adapter.