ASROCK DeskMini X300 Series Manual page 26

Chassis Intrusion Header
(2-pin CI1)
(see p.1, No. 3)
Audio Header
(5-pin AUDIO3)
(see p.1, No. 6)
24
This motherboard
1
supports CASE OPEN
GND
Signal detection feature that
detects if the chassis cove
has been removed. This
feature requires a chassis
with chassis intrusion
detection design.
This Audio header allows you to
1
connect the audio cable for head-
Audio-R
phone.
Audio-L
Jack detect
GND