GIGABYTE Ultra Durable™ 3 motherboards boast SuperSpeed USB 3.0 technology made possible through an additional onboard host controller. With superfast transfer rates of up to 5 Gbps, users are able to experience a theoretical 10x improvement over USB 2.0. Additionally, backwards compatibility with USB 2.0 assures users of long term use of their legacy USB 2.0 devices.
Turbo USB3.0 – Boosts Performance by Up To 10% 
When GIGABYTE's Turbo USB3.0 feature is enabled, it provides the fastest possible USB3.0 performance by allocating PCIe lanes to directly connect the CPU and USB 3.0 controller chip. This provides approximately 10% better performance than when it is disabled and USB 3.0 traffic is directed through the chipset.
Note: Turbo USB 3.0 utilizes 8 PCIe VGA lanes, so it is only possible to enable it with a single graphics card running at PCIe x8 on P67 chipset motherboards, or while using Intel® HD Graphics from the CPU (i.e. no VGA card) on H67 chipset motherboards. It is an option for high bandwidth users.