ASUS PRIME B550M-A/CSM

ASUS PRIME B550M-A/CSM
  • AMD B550 chipset
  • Micro-ATX format
  • 4x DDR4
  • 2x M.2
122.99
99.99 excl. VAT
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Information

The ASUS PRIME B550M-A/CSM is a Micro-ATX motherboard from the Components category, designed for AMD processors including the Ryzen 3000, 4000, and 5000 series. Built around the AMD B550 chipset, this board offers a solid foundation for both everyday computing and more demanding workloads. Its compact 244 x 244 mm form factor makes it suitable for smaller builds without compromising on core functionality. The board features a clean silver and black design and uses a UEFI AMI BIOS stored on 256 Mbit memory for straightforward system configuration.

Memory and Storage Capabilities
The ASUS PRIME B550M-A/CSM supports up to 128 GB of DDR4 memory across four DIMM slots, with memory clock speeds ranging from 2133 MHz all the way up to 4600 MHz, offering significant flexibility for performance tuning. For storage, the board includes four SATA III connectors and two M.2 slots, providing ample options for fast SSD and traditional drive configurations. The single PCIe x16 Gen 4 slot handles discrete graphics, while two PCIe 3.0 x1 slots offer room for expansion cards.

Connectivity and Audio
On the connectivity front, the board is equipped with a Realtek RTL8111H Gigabit LAN controller, two USB 3.2 Gen 2 Type-A ports, and a USB 3.1 Gen 1 header for front panel use. Display output options include both an HDMI port and a VGA port. Audio is handled by the Realtek ALC887 chip, with a front panel audio connector and headphone output rounding out the multimedia capabilities.

Specifications

Brand:
ASUS
Product number:
21036650
Product number manufacturer:
90MB14I0-M0EAYC

Audio

Audio chip:
Realtek ALC887

BIOS

BIOS memory :
256 Mbit
BIOS type:
UEFI AMI
Clear CMOS jumper:

Connectivity

HDMI ports:
1
Headphone out:
1
LAN (RJ-45) ports:
1
PS/2 ports:
1
USB 3.2 (Gen 1) type C ports:
0
USB 3.2 (Gen 2) type A ports:
2
USB 3.2 (Gen 2) type C ports:
0
VGA (D-Sub) ports:
1

Expansion slots

PCI Express 3.0 x1 slots:
2
PCI Express 3.0 x16 slots:
0

Internal I/O

ATX Power connector (24-pin):
Chassis fan connector(s):
2
CPU fan connector:
EPS power connector (8-pin):
Front panel audio connector:
M.2 ports:
2
SATA connectors:
0
SATA II connectors:
0
SATA III connectors:
4
USB 3.1 (3.1 Gen 2) connectors:
0
USB 3.1 (Gen 1) header(s):
1

Memory

Maximum memory:
128 GB
Memory slots:
4
Memory slots type:
DIMM
Memory types supported:
DDR4
Supported memory clock speeds:
2133, 2400, 2666, 2800, 3000, 3200, 3333, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400, 4600 MHz
Unbuffered:

Networking

LAN controller:
Realtek RTL8111H
Network standard:
1000 Mbps
Network technology (wired):

Physical characteristics

Colour of product:
Zilver, Zwart
Height:
244 mm, 51 mm
Model:
Micro-ATX
Width:
244 mm

Processor

Compatible processor series:
AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series
Processor family:
AMD

Technical details

Chipset:
AMD B550

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