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Samsung forum

General discussion

UE46B7020W : Using USB port to power HDMI extender

by idjh / October 20, 2009 8:05 PM PDT

I have a Samsung UE46B7020W LED TV and was wondering if with the right cable it would be possible to utilise a USB port to power an external device (Octavia HDMI extender) which has a power requirement of 5V 1A? Thanks.

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UE46B7020W : Using USB port to power HDMI extender
by Samsung_HD_Tech Samsung staff / October 21, 2009 4:51 PM PDT

idjh,

Most USB devices have that voltage threshold, so I don't see why not. Unfortunately, however, I don't have a list of guaranteed compatible devices outside of the listed MSC class devices outlined in the manual.

--HDTech

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Current rating
by _jr_ / October 22, 2009 12:10 AM PDT

USB ports are typically rated 5 V/500 mA. And 500 mA is in the high-power mode. It is possible that the USB port on the TV is the low-power type, and such port will only put out 100 mA. Either way, you need two of the high-power ports to get 1 A for your device... There is a very good chance your extender won't work...

_jr_

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Current rating
by Samsung_HD_Tech Samsung staff / October 22, 2009 7:05 PM PDT
In reply to: Current rating

_jr_,

Thanks for expounding, _jr_.

--HDTech

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