Dell OptiPlex Gxi - Manual (Page 47)

Network Interface, OptiPlex Gs and Gs+
The Gs+ systems have a built-in integrated 3Com ® 3C915 Ethernet NIC sub-system. The NIC subsystem connects to an RJ45 connector on the back panel of the
computer.
Chapter 4, "Using the Network Interface Controller," in the Reference and Installation Guide provides instructions for connecting the computer to, and configuring it for
use on, an Ethernet network.
Reference and Installation Guide (Low profile chassis)
Reference and Installation Guide (Midsize chassis)
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