Dell Precision 330 - Manual (Page 23)

About Your Computer 23
NOTICE: Do not connect a modem cable to the network adapter. Voltage
from telephone communications can damage the network adapter.
Network Cable Requirements
The NIC connector attaches an unshielded twisted pair (UTP) Ethernet
cable to your system. Press one end of the UTP cable into the NIC
connector until the cable snaps securely into place. Connect the other end
to an RJ45 jack wall plate or to an RJ45 port on a UTP concentrator or hub,
depending on your network configuration.
Dell recommends the use of Category 5 wiring and connectors for our
customers’ networks.
Video Connector
Used to attach a video graphics array (VGA)-compatible monitor to your
system.
Inside Your Computer
The following figures show the mini tower and desktop chassis with their
covers removed.