USB OTG AND USB HUBS
USB OTG and USB Hubs are technologies that help to provide more functionality to your existing USB port.
USB VERSIONS AND SPEED STANDARDS
The first USB version of USB is the USB 1.0. It was released in 1996 and it is ancient by modern standards. It is very slow, with data transmission speeds of just 1.5 Mbps.
UNIVERSAL SERIAL BUS (USB) ON SMARTPHONES
USB (or Universal Serial Bus) is an industry standard that establishes the specifications for cables and connectors as well as the protocols for connection, communication and power supply interfacing between computers, smartphones and other peripherals.