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Product specifications

ASUS PRIME B550-PLUS AC-HES motherboard AMD B550 Socket AM4 ATX

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AMD B550 Chipset, 256 Mb Flash ROM, UEFI AMI BIOS, DDR4, WIFI 5, 1GB Ethernet, ATX

Part PRIME B550-PLUS AC-HES · UPC 195553397162

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  • Ready for Advanced AI PC: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
  • AMD AM4 socket: Ready for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
  • Ultrafast connectivity: Dual M.2, PCIe 4.0, WIFI 5, 1 Gb Ethernet, rear USB 3.2 Gen 2 Type-A and Type-C®, front USB 3.2 Gen 1 Type-A and Type-C®
  • Comprehensive cooling: VRM heatsinks, PCH heatsink, hybrid fan headers, and Fan Xpert 2+
  • Aura Sync RGB: Onboard addressable Gen 2 headers for ARGB LED strips, easily synced with Aura Sync-capable hardware
  • CEC Tier II ready

About this product

AMD B550 (Ryzen AM4) ATX motherboard with dual M.2, PCIe 4.0, WIFI 5, 1 Gb Ethernet, DisplayPort/HDMI, SATA 6 Gbps, USB 3.2 Gen 2 Type-C®, front USB 3.2 Gen 1 Type-C® and Aura Sync ARGB headers support

Prime

ASUS Prime series is expertly engineered to unleash the full potential of 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features. This platform delivers the power and connectivity that advanced AI PC applications demand.

Processor

Processor manufacturer
AMD
Processor socket
Socket AM4
Compatible processor series
AMD Ryzen 5000 Series, AMD Ryzen 3000 Series

Memory

Supported memory types
DDR4-SDRAM
Number of memory slots
4
Memory slots type
DIMM
Memory channels
Dual-channel
ECC сompatibility
ECC
Supported memory clock speeds
4866,4800,4600,4466,4400,4333,4266,4200,4133,4000,3866,3733,3600,3466,3400,3333,3200,3000,2933,2800,2666,2400,2133 MHz
Maximum internal memory
128 GB
Unbuffered memory
Yes

Storage controllers

Supported storage drive types
HDD & SSD
Supported storage drive interfaces
M.2, SATA III
Number of HDDs supported
6
Number of storage drives supported
8
RAID support
Yes
RAID levels
0, 1, 10

Graphics

Parallel processing technology support
Not supported

Internal I/O

USB 2.0 connectors
2
USB 3.2 Gen 1 (3.1 Gen 1) connectors
2
Number of SATA III connectors
6
Front panel audio connector
Yes
ATX Power connector (24-pin)
Yes
CPU fan connector
Yes
Number of CPU fan connectors
1
Number of chassis fan connectors
2
EPS power connector (8-pin)
Yes
Number of COM connectors
1
TPM connector
Yes
12V power connector
Yes

Rear panel I/O ports

USB 2.0 ports quantity
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
2
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
1
Ethernet LAN (RJ-45) ports
1
HDMI ports quantity
1
DisplayPorts quantity
1
Headphone outputs
1
Microphone in
Yes
S/PDIF out port
Yes

Network

Ethernet LAN
Yes
Ethernet interface type
Gigabit Ethernet
Wi-Fi
Yes
Top Wi-Fi standard
Wi-Fi 5 (802.11ac)
Wi-Fi standards
Wi-Fi 5 (802.11ac)

Features

Motherboard chipset
AMD B550
Audio chip
Realtek ALC887 / Realtek ALC897
Audio output channels
7.1 channels
Product colour
Multicolour
Component for
PC
Motherboard form factor
ATX
Motherboard chipset family
AMD
Windows operating systems supported
Windows 10 x64

Expansion slots

PCI Express x16 (Gen 3.x) slots
4
Number of M.2 (M) slots
2
1st M.2 largest key size
2242
2nd M.2 largest key size
2260
3rd M.2 largest key size
2280
4th M.2 largest key size
22110

BIOS

BIOS type
UEFI AMI
BIOS memory size
256 Mbit

Weight & dimensions

Width
305 mm
Depth
244 mm

Specifications and images: Database Right data-sheet 2026 Icecat. All rights reserved. Supplied as is, without warranty. Specs Icecat · Open Content License

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