USB OTG - Computer Definition
(USB On-The-Go) An enhancement to the Universal Serial Bus (USB) that enables portable devices to be cabled directly together (no computer required). OTG devices operate in "dual-role" mode and can be identified as either a host or a peripheral. When cabled to each other, an automatic negotiation makes one the host and the other a peripheral. Fully compliant as of USB 2.0, OTG devices began to ship in 2002.