User Manual

Introductions: Interfaces (ports) and Cables
Universal Serial Bus (USB) is a serial bus standard to interface
http://en.wikipedia.org/wiki/Electrical_connectordevices. USB was designed to allow
peripherals to be connected using a single standardized interface socket and to
improve Plug-and-play capabilities by allowing devices to be connected and
disconnected without rebooting http://en.wikipedia.org/wiki/Rebootingthe
computer (hot-swapping). Other convenient features include providing power to
low-consumption devices without the need for an external power supply and allowing many
devices to be used without requiring manufacturer specific, individual device drivers to be
installed.
USB can connect computer peripherals such as external hard drives storage
devices, keyboards, PDAs, scanners, digital cameras, printers, personal media
players and flash drives. For many of those devices USB has become the
standard connection method.
USB supports four data transfer rates:
• USB 3.0: A Supper-Speed (USB 3.0) rate of up to 5,000 Mbits/s (1GB/3.3sec)
• USB 2.0: A Hi-Speed rate of 480 Mbits/s (60 MB/s). All Rocstor devices are integrated with
USB 2.0, Hi-Speed.
• USB 1.1: A Full Speed rate of 12 Mbits/s (1.5 MB/s). All USB Hubs support Full Speed.
• USB 1.0: A Low Speed rate of 1.5 Mbits/s (187 KB/s)
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