Asus ROG Strix B550-A Gaming AM4 ATX Motherboard - Manual (Page 14)

1-2 Chapter 1: Product Introduction
Chapter 1
1.2 Motherboard layout
DDR4 DIMM_B1 (64bit, 288-pin module) DDR4 DIMM_B2* (64bit, 288-pin module) DDR4 DIMM_A1 (64bit, 288-pin module) DDR4 DIMM_A2* (64bit, 288-pin module)
DIGI+
VRM
AIO_PUMP
CHA_FAN3 CHA_FAN2
CHA_FAN1
CPU_FAN CPU_OPT
BOOT
VGA
CPU
DRAM
M.2_1(SOCKET3)
RGB_HEADER2
COM_DEBUG
AURA
RGB_HEADER1
ADD_GEN 2
PANEL
AAFP
CLRTC
T_SENSOR
256Mb
BIOS
SATA6G_12
SATA6G_34
SATA6G_56
EATX12V_1 EATX12V_2
EATXPWR
U32G1_12
Intel ®
I225-V
BATTERY
HDMI
_DP
Super
I/O
PCIEX1_1
2280 2260 2242
M.2_2(SOCKET3)
2280 22110
22110
2260 2242
PCIEX1_2
PCIEX1_3
PCIEX16_2
PCIEX16_1
USB_E34 USB_E12 TB_HEADER
U2_56U32G1_78
24.4cm(9.6in)
30.5cm(12in)
AUDIO
LAN_U32G1_34
SOCKET AM4
FLBK_LED1
BIOS_FLBK
U32G2_C6
AMD
B550
8
7
6
5
18
16 11 10 12 15 13
3
2 1 4 11 4
14 9
6
17
5
4 4