ASRock A320M Pro4 R2.0 User Manual - Page 34
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Power LED and Speaker Header (7-pin SPK_PLED1) (see p.7, No. 15) Serial ATA3 Connectors (SATA3_1: see p.7, No. 13) (SATA3_2: see p.7, No. 12) (SATA3_3: see p.7, No. 10) (SATA3_4: see p.7, No. 11) SATA3_1 SATA3_3 SATA3_2 SATA3_4 SPEAKER DUMMY DUMMY +5V 1 PLED+ PLED+ PLED- X370M Pro4 R2.0 AB350M Pro4 R2.0 A320M Pro4 R2.0 Please connect the chassis power LED and the chassis speaker to this header. These four SATA3 connectors support SATA data cables for internal storage devices with up to 6.0 Gb/s data transfer rate. * M2_2 and SATA3_3 share lanes. If either one of them is in use, the other one will be disabled. AMD LED Fan USB Header (for X370M Pro4 R2.0 / AB350M Pro4 R2.0 only) (4-pin USB_5) (see p.7, No. 9) This header is used for connecting the USB connector on the AMD SR3 Heatsink. USB 2.0 Headers (9-pin USB_2_3) (see p.7, No. 17) (9-pin USB_2_4) (see p.7, No. 18) USB_PWR PP+ GND DUMMY 1 GND P+ PUSB_PWR There are two headers on this motherboard. Each USB 2.0 header can support two ports. English 29