ASROCK Vig103M Manual page 26

USB 2.0 connectors (10-1 pin JUSB1)
These connectors are for USB 2.0 ports on the front panel. Connect the USB module cable to any of these
connectors, then install the module to a slot opening at the back of the system chassis. These USB
connectors comply with USB 2.0 specifications and supports up to 480Mbps connection speed.
Figure 17: Front USB2.0 connector
Serial Port (COM) Connector
This connector is used for connecting a serial port with bracket, which is used for connecting peripherals
such as networks and printers.
Figure 18: COM connector
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V1.0 Vig103M Motherboard Manual