Did you know that a USB 3.0 port offers more than just 10x speed improvement? I can charge your peripheral device almost 2x faster. For example USB-chargable devices get a full 900mA, which is faster than the 500mA using USB 2.0. The USB 3.0 also helps to extend battery life, suspending operations when it is in idle mode. In addition:
According to the USB Implementers Forum, Inc. SuperSpeed USB has a 5 Gbps signaling rate offering 10x performance increase over
SuperSpeed USB is a Sync-N-Go technology that minimizes user wait-time.
SuperSpeed USB will provide Optimized Power Efficiency.No device polling and lower active and idle power requirements.
SuperSpeed USB is backwards compatible with USB 2.0. Devices interoperate with USB 2.0 platforms. Hosts support USB 2.0 legacy devices. USB 3.0 Annoucement