Stefan Mileschin

With its latest P8Z77, ROG Maximus V, and Sabertooth Z77 motherboard lines, ASUS became the first PC motherboard vendor to implement UASP - USB-attached SCSI Protocol. UASP changes the way the computer and connected USB devices talk to each other. It ensures more efficient utilization of bus bandwidth (5 Gb/s), resulting in higher bandwidth yield to connected devices. UASP allows connected devices to exchange multiple commands at once, reducing protocol overhead. UASP is implemented on ASUS motherboards using third-party controllers that support it. So far we know the likes of VLI to have such host controllers. In addition to these, ASUS motherboards also provide USB 3.0 ports wired to Intel PCH chipsets.

http://www.techpowerup.com/161870/AS...rformance.html