ASROCK AB350M User Manual page 34

AMD FAN LED Header
(4-pin AMD_FAN_
LED1)
(see p.1 or 3, No. 21)
32
AMD FAN LED Header is used
to connect RGB LED
extension cable that comes with
AMD heatsink. The cable
connection allows users to choose
from various LED lighting
effects.
Caution: Never install the FAN
LED cable in the wrong orienta-
tion; otherwise, the cable may
be damaged.