Micro-Star International MS-7640 Notice D'installation page 26

MS-7640 Mainboard
Front Panel Connectors: JFP1, JFP2
These connectors are for electrical connection to the front panel switches and LEDs.
The JFP1 is compliant with Intel Front Panel I/O Connectivity Design Guide.
®
JFP2
JFP1
S/PDIF-Out Connector: JSP1
This connector is used to connect S/PDIF (Sony & Philips Digital Interconnect Format)
interface for digital audio transmission.
* The MB layout in this figure is for reference only.
S/PDIF-Out Bracket (optional)
En-16