ASROCK B550D4ID-2T/CG User Manual page 26

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No.
Description
1
Front LAN LED Connector (LED_LAN_3_4)
2
NCSI Header (NCSI1)
3
SATA Power Connector (DC-IN Mode) (SATA_PWR1)**
4
ATX 12V Power Connector (ATX12V1)
5
PSU SMBus Header (PSU_SMB1)
6
System Fan Connector (4-pin) (FAN1)
7
System Fan Connector (4-pin) (FAN2)
8
M.2 Socket (M2_1) (Type 22110)
9
M.2 Socket (M2_2) (Type 2280)
10
TPM Header (TPM1)
11
OCuLink x4 Connector (OCU1)
12
Clear CMOS Pad (CLRCMOS1)
13
TPM-SPI Header (TPM_BIOS_PH1)
14
Speaker Header (SPEAKER1)
15
Thermal Sensor Header (TR1)
16
System Fan Connector (4-pin) (FAN3)
System Panel Header (PANEL1)
17
18
Auxiliary Panel Header (ITX_AUX_PANEL1)
19
COM Port Header (COM1)
20
PWM Configuration Header (PWM_CFG1)
21
2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)*
22
2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)*
*For DIMM installation and configuration instructions, please see p.33 (Installation of Memory Modules
(DIMM)) for more details.
20

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