I had the same comment as shadow, why only usb 2.0 on the stinger? Went to the website though, says it supports 6 USB 3.0 in additon to the 2.0. Looks like a typo fortunately.
Actually, the stinger does have usb3.0 ports on the back. There are 4 of them. Here are the specs I copied from evga website:
4x Rear Panel USB 3.0 Ports
4x Rear Panel USB 2.0 Ports
Creative Sound Core3D Quad-Core Audio Processor
1x Intel Gigabit Ethernet
1x E-SATA Ports
1x Bluetooth 2.1