The Belkin Thunderbolt Express dock uses a Fresco Logic xHCI (USB3) Controller FL1100 Series chipset when used with Windows 7 or 8.

The driver that will allow the Belkin Express Dock to work with windows 7 can be downloaded from HP’s website via sp59929.exe which can be obtained from this page: http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/psi/swdDetails/?cc=us&swItem=ob_112771_1

Hardware IDs found in the device manager:

PCI\VEN_1B73&DEV_1100&SUBSYS_0055050D&REV_01
PCI\VEN_1B73&DEV_1100&SUBSYS_0055050D
PCI\VEN_1B73&DEV_1100&CC_0C0330
PCI\VEN_1B73&DEV_1100&CC_0C03