MSI PH61A-P35 (B3) User Manual page 32

Hardware Setup Hardware Setup
S/PDIF-Out Connector: JSP1
Ths connector s used to connect S/PDIF (Sony & Phlps Dgtal Interconnect Format)
nterface for dgtal audo transmsson.
S/PDIF-Out Bracket (optonal)
Seral Port Connector: JCOM1
Ths connector s a 16550A hgh speed communcaton port that sends/receves 16
bytes FIFOs. You can attach a seral devce.
2-16
* The MB layout n ths figure s for reference only.