ASROCK B660M-HDV Manual page 6

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 Chassis/Water Pump Fan Connector (CHA_FAN1/WP)
5 ATX Power Connector (ATXPWR1)
6 USB 3.2 Gen1 Header (F_USB3_1_2)
7 SATA3 Connector (SATA3_1)
8 SATA3 Connector (SATA3_0)
9 SATA3 Connectors (SATA3_2)(Upper), (SATA3_3)(Lower)
10 SPI TPM Header (SPI_TPM_J1)
11 System Panel Header (PANEL1)
12 Clear CMOS Jumper (CLRMOS1)
13 Chassis Intrusion and Speaker Header (SPK_CI1)
14 Chassis/Water Pump Fan Connector (CHA_FAN2/WP)
15 USB 2.0 Header (USB5)
16 USB 2.0 Header (USB3_4)
17 COM Port Header (COM1)
18 Front Panel Audio Header (HD_AUDIO1)
19 CPU/Water Pump Fan Connector (CPU_FAN2/WP)
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