GA-USB Overview Motherboard

30-series ThinkStations that support front panel USB3 ports utilize a proprietary connector at the motherboard level, as shown in your pic below

The USB3SPLATE 2-Port USB Gen 1 A Slot Plate converts the USB pins on the USB Gen 1 motherboard header to 2 standard USB Gen 1 A-type ports

usb 30 slot Thunderbolt 1 and 2 use the same connector as Mini DisplayPort whereas Thunderbolt 3 uses the USB-C connecter Define port capabilities for predictable

usb slot types ALOGIC USB SuperSpeed 3 Port HUB and Gigabit Ethernet Adapter