Atx 20-Pin Power Connector: Jwr1 - MSI MS-6199VA User Manual

2.7-1 ATX 20-pin Power Connector: JWR1

This connector supports the power button on-board. Using the ATX power
supply, functions such as Modem Ring Wake-Up and Soft Power Off are
supported by this mainboard. This power connector supports instant power
on function which means that system will boot up instantly when the power
connector is inserted on the board.
11 1
20 10
ATX
Power Connector
2-13