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No. Description
1
CPU Fan / Waterpump Fan Connector (CPU_FAN2/WP)
2
ATX 12V Power Connector (ATX12V1)
3
ATX 12V Power Connector (ATX12V2)
4
CPU Fan Connector (CPU_FAN1)
5
2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
6
2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)
7
RGB LED Header (RGB_LED2)
8
Addressable LED Header (ADDR_LED2)
9
ATX Power Connector (ATXPWR1)
10
USB 3.2 Gen1 Header (USB3_7_8)
11
SPI TPM Header (SPI_TPM_J1)
12
SATA3 Connector (SATA3_3)
13
SATA3 Connector (SATA3_4)
14
SATA3 Connector (SATA3_1)
15
SATA3 Connector (SATA3_2)
16
Post Status Checker (PSC)
17
System Panel Header (PANEL1)
18
Power LED and Speaker Header (SPK_PLED1)
19
Chassis Fan / Waterpump Fan Connector (CHA_FAN1/WP)
20
Clear CMOS Jumper (CLRCMOS1)
21
USB 2.0 Header (USB_3_4)
22
USB 2.0 Header (USB_1_2)
23
Chassis Fan / Waterpump Fan Connector (CHA_FAN2/WP)
24
Chassis Fan / Waterpump Fan Connector (CHA_FAN4/WP)
25
Addressable LED Header (ADDR_LED1)
26
RGB LED Header (RGB_LED1)
27
COM Port Header (COM1)
28
Front Panel Audio Header (HD_AUDIO1)
29
Chassis Fan / Waterpump Fan Connector (CHA_FAN3/WP)
B550 Phantom Gaming 4/ac
B550 Phantom Gaming 4
9
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