ASUS PRIME B550M-A AC
ASUS

PRIME B550M-A AC

Model PRIME B550M-A ACPart no. 90MB15K0-M0EAY0EAN 192876755532

78 specifications
  • SpeedWi-Fi 5 (802.11ac)
  • Processor manufacturerAMD
  • Supported memory typesDDR4-SDRAM
  • Supported storage drive typesHDD & SSD
  • Parallel processing technology supportNot supported
  • USB 2.0 connectors2
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Overview

Speed
Wi-Fi 5 (802.11ac)
Processor manufacturer
AMD
Supported memory types
DDR4-SDRAM
Supported storage drive types
HDD & SSD
Parallel processing technology support
Not supported
USB 2.0 connectors
2
Brand
ASUS
Category
Motherboard
Model
PRIME B550M-A AC
Part number
90MB15K0-M0EAY0
EAN / UPC
192876755532, 192876848401, 4718017848404
Also known as
ASUS PRIME B550M-A AC AMD B550 Socket AM4 micro ATX

Specifications

78 specifications in 13 groups

Processor

SpecificationValue
Processor manufacturerAMD
Processor socketSocket AM4
Compatible processor seriesAMD Ryzen 3000 Series, AMD Ryzen 5000 Series
Supported processor socketsSocket AM4

Memory

SpecificationValue
Supported memory typesDDR4-SDRAM
Number of memory slots4
Memory slots typeDIMM
Memory channelsDual-channel
ECC сompatibilityECC
Supported memory clock speeds2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400,4466,4600,4800 MHz
Maximum internal memory128 GB
Unbuffered memoryYes

Storage controllers

SpecificationValue
Supported storage drive typesHDD & SSD
Supported storage drive interfacesM.2, PCI Express 3.0, PCI Express 4.0, SATA III
Number of storage drives supported6
RAID supportYes
RAID levels0, 1, 10

Graphics

SpecificationValue
Parallel processing technology supportNot supported
Maximum resolution3840 x 2160 pixels

Internal I/O

SpecificationValue
USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors1
USB 3.2 Gen 2 (3.1 Gen 2) connectors0
Number of SATA III connectors4
S/PDIF out connectorYes
Front panel audio connectorYes
ATX Power connector (24-pin)Yes
Number of EATX power connectors1
CPU fan connectorYes
Number of chassis fan connectors2
EPS power connector (8-pin)Yes
12V power connectorYes
Number of COM connectors1
TPM connectorYes
RGB LED pin headerYes

Rear panel I/O ports

SpecificationValue
USB 2.0 ports quantity0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity0
Ethernet LAN (RJ-45) ports1
PS/2 ports quantity1
VGA (D-Sub) ports quantity1
HDMI ports quantity1
HDMI version2.1
DVI-D ports quantity1
Headphone outputs3
Microphone inYes
WiFi-AP antenna jack1
USB connector typeUSB Type-A

Network

SpecificationValue
Ethernet LANYes
Ethernet interface typeGigabit Ethernet
LAN controllerRealtek RTL8111H
Wake-on-LAN readyYes
Wi-FiYes
Top Wi-Fi standardWi-Fi 5 (802.11ac)
Wi-Fi standards802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
WLAN controller modelRealtek RTL8821CE
BluetoothYes
Bluetooth version5.0

Features

SpecificationValue
Component forPC
Motherboard form factormicro ATX
Motherboard chipset familyAMD
Motherboard chipsetAMD B550
Audio chipRealtek ALC887 / Realtek ALC897
Audio output channels7.1 channels
Windows operating systems supportedWindows 10 x64

Expansion slots

SpecificationValue
PCI Express x1 (Gen 3.x) slots2
PCI Express x16 (Gen 3.x) slots1
PCI Express x16 (Gen 4.x) slots1
Number of M.2 (M) slots2

BIOS

SpecificationValue
BIOS typeUEFI AMI
BIOS memory size256 Mbit
Clear CMOS jumperYes

Logistics data

SpecificationValue
Harmonized System (HS) code84733020

Weight & dimensions

SpecificationValue
Width244 mm
Depth244 mm

Packaging content

SpecificationValue
Cables includedSATA
Drivers includedYes

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