ASROCK B550M-HDV, Manual

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2
No. Description
1 ATX 12V Power Connector (ATX12V1)
2 CPU Fan Connector (CPU_FAN1)
3 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
4 ATX Power Connector (ATXPWR1)
5 USB 3.2 Gen1 Header (USB3_5_6)
6 SATA3 Connector (SATA3_3)
7 SATA3 Connector (SATA3_4)
8 SATA3 Connector (SATA3_1)
9 SATA3 Connector (SATA3_2)
10 System Panel Header (PANEL1)
11 Chassis Intrusion and Speaker Header (SPK_CI1)
12 Chassis Fan Connector (CHA_FAN2)
13 USB 2.0 Header (USB_3_4)
14 USB 2.0 Header (USB_5_6)
15 COM Port Header (COM1)
16 Clear CMOS Jumper (CLRCMOS1)
17 Front Panel Audio Header (HD_AUDIO1)
18 SPI TPM Header (SPI_TPM_J1)
19 Chassis Fan Connector (CHA_FAN1)