bb70e423_le_Intel__HM57_Express_Chipset__Benefit
[Feature] Universal Serial Bus (USB) [Benefit] 
Hi-Speed USB 2.0 provides greater enhancement in performance with a design data rate of up to 480 megabits per second (Mbps) with up to 14 USB 2.0 Ports.
Mobile Intel® HM57 Express Chipset
Benefit