It is USB 2.0, the standard external data and power connection.

if you have the proper high speed computer devise , as well as service provider , internally and or if you are using external Internet connection

Nope.

There are several advantages of using and external FireWire hard drive. Some of these advantages are portability, high speed, extra space and user friendliness.

It is likely to depend on the speed of the external hard drive, although most newer external hard drives have a reasonable speed, so it is likely you will be fine wi th using an external hard drive.