Pioneer DVR Question

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I have a Pioneer Passport DCT 2.5 DVR that was furnished by my cable provider.
On the front left side is a USB port.
The only literature that came with the DVR was a quick start guide.There is no mention of this port or what
it's function is.
I called the cable co.The tech obviously didn't know the answer. He said that if the DVR was functioning not to worry as I didn't need it
Can anyone familiar with this unit teel me what the port is for??

 

[videobruce]

Have you done a search for this? This "Passport" seems to be the name of their software. See if this link works.

http://www.google.com/url?url=http:...ggfMAI&usg=AFQjCNELO3hrA7LOAPpI7L8hqWBehhIj-g

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