Dell XPS 8930 Setup And Specifications page 18

NOTE: If you ordered your computer with a discrete graphics card, the
DisplayPort on the back panel of your computer is covered. Connect
the display to the discrete graphics card of your computer.
4 HDMI port
Connect a TV or another HDMI-in enabled device. Provides video and audio
output.
NOTE: If you ordered your computer with a discrete graphics card, the
HDMI port on the back panel of your computer is covered. Connect the
display to the discrete graphics card of your computer.
5 USB 3.1 Gen 1 ports (3)
Connect peripherals such as storage devices and printers. Provides data transfer
speeds up to 5 Gbps.
6 USB 3.1 Gen 2 Type-C port
Connect peripherals such as external storage devices and printers. Provides data
transfer speeds up to 10 Gbps.
7 USB 3.1 Gen 2 port
Connect peripherals, such as storage devices and printers. Provides data
transfer speeds up to 10 Gbps.
8 Front L/R surround line-out port
Connect audio-output devices such as speakers and amplifiers. In a 2.1 speaker
channel setup, connect the left and right speakers. In a 5.1 or a 7.1 speaker
channel setup, connect the front-left and front-right speakers.
9 Rear L/R surround port
Connect audio-output devices such as speakers and amplifiers. In a 5.1 speaker
channel setup, connect the rear-left and rear-right speakers.
10 Center/subwoofer LFE surround port
Connect the subwoofer.
NOTE: For more information about the speaker setup, refer to the
documentation that shipped with the speakers.
18