Usb Host Solder

[rbusa]

I've downloaded Wiz WLAN Scripts and in tutorial were 4 wires to solder, but in my USB host are 5 wires:
Black \
Red \_ These are in tutorial explained where to solder
Green /
White /
Copper-colored wire (?) - Has this some targetted pin or is it not important for function of Host?

SaS