Lenovo 3000 H310 User Manual page 15

1.3.9 Connect any additional devices that you have. Your
computer might not have all connectors that are shown.
USB connector
TV-Tuner
connector
Ethernet
1.3.10 Connect the WiFi antenna to WiFi card connector.
connector only equipped on the model with WiFi card.)
WiFi antenna connector — To connect the computer to a wireless network.
Screw the WiFi antenna on the WiFi card connector if the model you
purchased is equipped with the WiFi card.
10
User Guide
Use this connector to attach a device that requires a USB
connection.
Only supported on systems with optional TV tuner card.
Use this connector to attach the computer to an Ethernet-
type local area network.
(This