Does MacAir have 2 x USB 3.0 ports (5GB)?

[Terriane]

I've just bought a brand new MacAir. It states in the technical specs that it comes with 2 x USB 3.0 (up to 5GB) ports...

However... when I check the specs:
About this Mac> More Info >Hardware >USB
It shows up:
USB 3.0 SuperSpeed Bus
USB 3.0 HighSpeed Bus

Under the 3.0 HighSpeed Bus, it says:
USB 3.0 Hi-Speed Bus:

Host Controller Location: Built-in USB
Host Controller Driver: AppleUSBXHCI
PCI Device ID: 0x9c31
PCI Revision ID: 0x0004
PCI Vendor ID: 0x8086
Bus Number: 0x0a

BRCM20702 Hub:

Product ID: 0x4500
Vendor ID: 0x0a5c (Broadcom Corp.)
Version: 1.00
Speed: Up to 12 Mb/sec
Manufacturer: Apple Inc.
Location ID: 0x14300000 / 2
Current Available (mA): 500
Current Required (mA): 94

Bluetooth USB Host Controller:

Product ID: 0x828f
Vendor ID: 0x05ac (Apple Inc.)
Version: 0.78
Speed: Up to 12 Mb/sec
Manufacturer: Apple Inc.
Location ID: 0x14330000 / 4
Current Available (mA): 500
Current Required (mA): 0

I'm confused...
Does this mean only 1 port is true USB3.0?

NB: I took my new MacAir back to the Apple store today and they replaced it with a brand new one, however straight out of the box it has the above specs, which was the same as the other machine so I'm wondering if I'm missing something here...?

 

[chown33]

Plug in a USB device that actually uses USB 3.0. Then plug in another one.

The super-speed bus is unused (nothing listed under it) until something that uses super-speed is actually present.

 

[Gav2k]

There usb3 ports tried and tested.

 

[Terriane]

I plugged my USB3 drive into both of them and only one is super fast - hence the question.
In the Superspeed port - it shows my G-Drive and a speed of 5GB. If I plug the same device into the other port, it stays the same as the specs above. Video editing - it is definitely slower...

 

[sammich]

You'll notice that the only thing that's connected to the Broadcom Hub is the Bluetooth USB Host Controller.

You'll see under mine, there are two (still USB2) Hi-Speed top level 'branches'. Those are the main USB connections, with the branches below using those connections.