ASROCK PRO Series User Manual page 14

No. Description
1 ATX 12V Power Connector (ATX12V1)
2 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
3 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)
4 CPU Fan Connector (CPU_FAN1)
5 CPU/Water Pump Fan Connector (CPU_FAN2/WP)
6 Addressable LED Header (ADDR_LED3)
7 Addressable LED Header (ADDR_LED2)
8 ATX Power Connector (ATXPWR1)
9 Front Panel Type C USB 3.2 Gen1 Header (USB31_TC_1)
10 USB 3.2 Gen1 Header (USB3_7_8)
11 USB 3.2 Gen1 Header (USB3_5_6)
12 Chassis/Water Pump Fan Connector (CHA_FAN3/WP)
13 SATA3 Connector (SATA3_3)
14 SATA3 Connector (SATA3_2)
15 Chassis/Water Pump Fan Connector (CHA_FAN5/WP)
16 Post Status Checker (PSC)
17 SPI TPM Header (SPI_TPM_J1)
18 System Panel Header (PANEL1)
19 SATA3 Connector (SATA3_1)
20 SATA3 Connector (SATA3_0)
21 Chassis/Water Pump Fan Connector (CHA_FAN4/WP)
22 Clear CMOS Jumper (CLRMOS1)
23 Chassis/Water Pump Fan Connector (CHA_FAN2/WP)
24 USB 2.0 Header (USB_3_4)
25 COM Port Header (COM1)
26 5-pin Thunderbolt AIC Connector (TB1)
27 RGB LED Header (RGB_LED1)
28 Addressable LED Header (ADDR_LED1)
29 Chassis Intrusion and Speaker Header (SPK_CI1)
30 Front Panel Audio Header (HD_AUDIO1)
31 Chassis/Water Pump Fan Connector (CHA_FAN1/WP)
B660 Pro RS
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