MSI K9N6PGM2-V2 - Motherboard - Micro ATX User Manual page 17

MS-7309
ieee394 Connector: J394_ (optional)
this connector allows you to connect the ieee394 device via an optional
ieee394 bracket.
S/PdiF-out Connector: JSP
this connector is used to connect S/PdiF (Sony & Philips digital interconnect
Format) interface for digital audio transmission.
Cd-in Connector: JCd
this connector is provided for external audio input.
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