3.0 USB? Seems like a question I shouldn't have to ask
941016
USB 2.0 max, details at http://www.zwoptical.com/eng/Cameras/ASI120/index.asp
941017
No- spec says 2.0- but a 3.0 laptop should be able to handle a slower 2.0all that means is transfer should be pushed to near maximum speed
1188772
It is USB 3.0, no adapter needed, or provided, and there is no place to plug in one even if you wanted to - draws any needed power from the USB 3 port.
1217023
I haven't had any issues. I'm running Windows 8 (8.1, if the distinction is significant) and I've accidentally put mine in my 2.0 port a few times. It just won't run at USB 3.0 speeds in the 2.0 port.
1190277
I actually haven't had a need for it yet, so I certainly haven't timed it. The specs are that it is USB 3, no matter what that is better than a USB 2.
2262000
I think there's one very important point that no one has mentioned: USB 3.0 provides 0.9 amps while USB 2.0 provides 0.5 amps. Keep that in mind. BTW, 3.5" always needs the power adapter; 2.5" USUALLY (not always) is not required.
121412
you certainly can use both USB 3.0 and USB 2.0; the only difference is transfer speed.
2081417
Yes. I never consider what version of USB I'm using. My iDsonix is plugged into the 3.0 port on my Dell XPS laptop.
1952868
Some are and some are not. They usually indicate if a 3.0 is backwards compatible with 2.0 on the package or description. This particular USB 3.0 works with 2.0 as well and it has been working just well for me.
2038541
yes, i have windows 7 w/o usb 3.0, the drive works fine it just doesn't have 3.0 speed
278643
My machine only has USB 2.0, so I can't say anything about higher versions, sorry...
1508050
No Usb needed However this is not too reliable maybe a different brand may work.
1124326
3.0 USB is a newer, faster connection, however, the backup will work fine with 2.0 or 3.0
1560471
Possibly there is no gurantee depending on how new or oldbut if its fairly new with usb you should be fine. But no gurantees
1039495
Yes. USB 3.0 is backwards compatible with USB 2.0 devices. See http://en.wikipedia.org/wiki/USB_3.0#Architecture_and_features
1866809
Yes but in XP your USB 3.0 will only run at 2.0 transfer speed... Not a big deal but you should have no problems.
408539
Yes you can. It just means it won't transfer as fast on a 2.0 port versus a 3.0 port. 3.0 usb just means it has the capability to transfer at a 3.0 usb speed, but doesn't limit you to only using 3.0 usb ports. Hope this helps!
862130
Yes! I have USB 3.0 and 2.0 I really can't tell the difference between the two in speeds...