HP Xw9400 - Workstation - 16 GB RAM Reference Manual page 192

Keyboard connector
Mouse connector
Internal Type A USB connector
Internal IEEE 1394b connector
182 Appendix C Appendix C— Connector pins
Pin Signal
1 Data
Unused
2
Ground
3
4 +5 VDC
Clock
5
Unused
6
Pin Signal
1 Data
Unused
2
Ground
3
4 +5 VDC
Clock
5
Unused
6
Pin Signal
1 +5 VDC
2 - Data
3 + Data
4 Ground
Pin Signal
1 TPB-
2 TPB+
3 TPA-
4 TPA+
5 TPA (R)
6 VG
7 SC
8 VP
9 TPB (R)
ENWW