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What Is an S400 Port?

Updated April 17, 2017

An S400 port, is another name for the IEEE 1394 interface port, better known in Apple products as a FireWire port and in Sony products as an i.Link port.

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Name

As with S400 ports, FireWire and i.Link ports are sometimes labelled with an "S" and then a number. This number indicates the megabits of information per second that the port can transfer.

Function

S400 ports and cables are used for cables that transfer information between two computers or between a computer and another device. S400 ports can also provide power to the devices connected to them.

Advantages

The IEEE-1394 interface system provides a relatively cheap, easy to use and flexible way of transferring data. It is also one of the fastest systems in consumer use.

Uses

S400 ports are used to connect your computer to peripheral devices such as printers and external hard drives. Because of S400 port's high data transmission speed, it is often used with multimedia devices such as digital cameras.

Devices

The most common devices that use S400 ports are Apple computers. The FireWire system is built into all Apple laptops and desktops, as well as most other Apple devices such as iPods. i.Link S400 ports may also be found on Sony digital cameras.

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About the Author

Abe Robinson has been a freelance writer since he graduated from college in spring 2009. He has written for a variety of websites and has provided content for the University of Chicago's "Ceremonial Words – Ritual Acts." He also holds a Bachelor of Arts degree from that university, receiving honors for his B.A. Thesis "Anglo-American Perceptions of Japanese Imperialism in Taiwan."

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