HP Notebook - Manual (Page 104)

Communications
Network
All notebook models ship with an RJ-45 network jack. A
network cable with RJ-45 connectors at each end is included
with select models.
The notebook can be connected to a network whether or not
the internal modem is connected to a telephone line.
If your notebook is connected to a network, you may want to
confer with your network administrator before changing network
settings.
The notebook supports network speeds up to 10 Mbps when
connected to a 10BaseT network and 100 Mbps when connected
to a 100BaseTX network.
7-10 Startup and Reference Guide––Part 2