If your Device Manager shows an ENHANCED USB Host Controller, the system has High Speed USB (USB 2.0) capability.

Types of High Speed USB (USB 2.0) Host Controllers

Intel Enhanced
SiS Enhanced
VIA Enhanced
ALi Enhanced
Standard Enhanced
NEC Enhanced

This system sown has onboard Intel High Speed USB (USB 2.0) with an NEC High Speed USB (USB 2.0) PCI card installed.

The key word is ENHANCED . If you have an ENHANCED USB Host Controller then you have High Speed USB (USB 2.0)

All other types are USB v.1.1