How many USB 3.0 ports?
928814
Two, and they're pretty close to each other so if you have a fat device you're only going to be able to fit one in the computer at once.
1037342
According to the product spec, it maintains full USB 3.0 speed for each of the four ports (2 external and 2 internal - via the 20-pin header). I haven't tested that, though.
1478978
10 4tb HDDs....that is some heavy editing. The iDsonix USB 3 has 10 powered ports and an 11th port for ONLY charging, but you can read that in the description. I like that you can turn off each "set of three ports" with their individual on/off switch. I connect three 1TB HDDs and the other seven are used for misc. things. Powered wireless mouse, 2 usb to micro usb (not powered). I can't say that 100% of the time all ports are in use. I love mine and I'd suggest you try it. If it doesn't handle your load Amazon with take it back. Good luck
748198
7 USB Ports (3 front 4 back)Check out their website: http://www.aa-comps.com/They have a lot more info on their site.
118638
Four USB slots in back, two in front. Two of the rear USB slots are for USB 3. Not sure on empty bays. Two?
1827011
Of course. USB 2.0 will never match 3.0 speed. When the drive worked read on 3 was at least 4 times faster
1113918
Sure....it has TEN! Two are on the very top, four on the front behind a drop down panel and another four on the rear of the tower. Not positive but I think about half are USB-3. Taht is a lot and way more than I need. I wish they had four on the top and none on the front. Clearly the front ports are for temporary use and who would ever be using four temporary USB devices at the same time. Awesome computer though....scary fast compared to the AMD Phenom 6-core with 8GB RAM that I just replaced.
2001775
There are 2 USB 3.0 ports on top - 2 USB 2.0 ports on the front - 2 USB 3.0 ports on the back and 4 USB 2.0 ports on the back for a total of 10 USB ports on the case.
2200710
Two USB3 rear and one internal(the internal port is up to two USB3 ports).Details here: http://www.asrock.com/mb/Intel/Z75%20Pro3/?cat=Specifications
1824336
Yes, it is only one USB 3.0 port. If you really like this particular model and need a second port, you could get a USB 3 hub.
2071925
These are the ports available:USB 3.0 Downstream ports for USB 3.0 device (Type A receptacle) x3Microphone port x1Headphone port x110/100/1000Mbps LAN (RJ-45) port x1VGA port x1HDMI port x1DVI-D port x1DC IN port x1USB 3.0 upstream port for a notebook/desktop computer (Type B receptacle) x1
1817639
Most likely, it will be limited. USB 3.0 requires both drivers and motherboard ports that earlier models might simply not have. There is some forward compatibility between USB 2.0 and USB 3.0 but I would not bet on it. You will still be getting USB 2.0 speeds.
922221
my PC has 2 USB ports that are 3.0 if that's the question you're referring to
6080
2 USB 3.0 ports at mid-board for front panel, 4 USB 3.0 ports at back panel, 8 USB 2.0 ports ( 4 mid panel, 4 back panel)
297660
The case may not have USB 3.0, but most of the newer motherboards have 4 USB 3.0 slots.
121412
you certainly can use both USB 3.0 and USB 2.0; the only difference is transfer speed.
1631588
If you have 2 ports for connecting USB devices version 2.0 and one USB 3.0 port for use as internal storage or hard disk reading