If there is no power cable needed, why does the photo show a "USB/POWER" port? what purpose does the USB port serve?
1989140
Power is not needed for MOST devices, but some need external power. Most satellite receivers or BluRay players will power the unit by themselves, but there's no way a small tablet can. The USB port is for use with those devices, so you can provide extra power to make up for what the HDMI source lacks.
1989141
My Etekcity® HDMI to AV Composite RCA CVBS Video + Audio Converter For TV PS3 VHS VCR DVD works fine with the USB cable plugged into the home theater amplifier. I don't know if the HDMI amplifier output has the right power for this converter.
145875
No power cable is needed. The card gets its power from the motherboard via the PCI connector.
1827851
It is powered by a proprietary AC adapter and cable. It is not USB powered, and has no USB ports.
1811180
I don't know. I am not using the power port. My laptop has enough power to the card that everything works fine without an external power supply.
1558718
the drive requires the usb cable only! power is provided by your computer through that cable.
163662
Nope, its just electronics. Zero issues, but you wouldn't be able to power it (requires two outlets)
1778485
"We provide the USB cable that's not only the interface connection, but the power source - no additional power cords are needed." as per product description. There is no battery power.
862202
It works without power supply when attached devices have little power consumption but peripherals such as an external hard drive that draws power from the port requires the added boost of the external power supply.
2275317
It has to get it from the USB because there is no other power supply directly going into it, why is this question even being asked?
984015
No external power supply is needed. It is "plug & play". It gets power from the computer's ExpressCard/34 slot.
35884
Uses one usb port for both power and data. I use mine daily. Has a great picture.
1539578
I'm not the seller, sorry. I'd suggest looking up some installation guides because it can be a little tricky I had to buy a powered USB hub when I got mine.
2185572
yes i think there was a short usb cord. can't remember exactly. my issue was not about plugging in. it was about compatibility
2261999
You CAN power it up via the USB Port OR the external Power Adapter. Using the external Power Adapter allows the plugged in( tested or augmenting) hard drive to operate more efficiently, It's another step but worth the small effort. Product support recommend connecting it that way... so that's what I did. If you do likewise you should connect the Power Adapter BEFORE connecting the USB Cable.
588948
Mine only has one USB port. Power and data are through a single USB cable. Sounds like you would be better off with a unit that comes with an external power supply. More of an opinion than a proven fact. Good luck.
270490
A power adapter is included, but you'll need to purchase a USB A to B cable (male to male) if you plan to connect it to a computer.
1176575
A power cord which doesn't affect is use but I guess you need it for the USB plugs on the side