Compaq 6720s - Notebook PC

RJ-45 (network)
Pin Signal
1 Transmit +
2 Transmit -
3 Receive +
4 Unused
5 Unused
6 Receive -
7 Unused
8 Unused
Universal Serial Bus
Pin Signal
1 +5 VDC
2 Data -
3 Data +
4Ground
134 Chapter 9 Connector pin assignments