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Windows 7: USB 3.0 Cards


08 Sep 2010   #11

W7 X-64 W8.1 X-64 Opensuse 13.1 W2003 Server
 
 

Quote   Quote: Originally Posted by alphanumeric View Post
Having or not having an extra power connector shouldn't affect the speed. If it's advertised as being USB 3.0 and has the logo it should operate at USB 3 speeds.
Disagree -- a Car will operate at its rated spec BUT ONLY IF YOU PUT GAS IN THE TANK.

I've found even with some external USB 2 devices they won't operate properly - especially through a USB hub unless extra power is supplied -- some external HDD's have a dual USB connector to draw more power from the computer as well.

(Actually you are correct -- My post is merely to say that without sufficient power the device WON'T work -- so this is probably a philosophical difference only. The net result in either case is that the device doesn't work so the speed it should operate at is irrelevant).

Cheers
jimbo


My System SpecsSystem Spec
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08 Sep 2010   #12
Microsoft MVP

Windows 8.1 Pro with Media Center 64 bit
 
 

I was assuming the power connector had a power supply cable plugged into it.
So if both cards are certified for USB 3 speeds it shouldn't matter which one you buy. And obviously you need a USB 3 device to plug into it to get the USB 3 speeds. If the OP could post some links to these cards it might help sort some of this out. I'd be interested to see if it's a PCI versus PCIe thing.
My System SpecsSystem Spec
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 USB 3.0 Cards




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