Intel H310 Technical Manual page 27

(5) FP_USB3(19-pin): USB 3.1 (Gen.2) Port Wafer
*Note:
(6) FP_USB1/FP_USB2 (9-pin): USB 2.0 Port Header
FP_USB3
FP_USB3 header is optional for Model NF893-H370.
11
10
FP_USB1
NC
GND
+DATA
-DATA
VCC
FP_USB2
22
Pin 1
GND
+DATA
-DATA
VCC
2
Pin 1