ASUS PRIME B550-PLUS AC-HES

B550 · AM4 · ATX · DDR4

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Chipset B550
Form factor ATX
Memory slots 4
Max memory 128 GB
Socket AM4
Memory type DDR4

ASUS PRIME B550-PLUS AC-HES is an ATX and B550 chipset motherboard for AM4 processors and DDR4 memory. It came out in 2026.

Released: 2026-02-24
Socket: AM4

Specifications

Key specs

Chipset: B550
Form factor: ATX
Memory slots: 4
Max memory: 128 GB
Socket: AM4
Memory type: DDR4
Released: 2026-02-24
Part number: PRIME B550-PLUS AC-HES
EAN / UPC: 0195553397162

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

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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

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Compatible processors

AM4 socket

AMD Ryzen 5 56006 cores · 12 threads
AMD Ryzen 5 55006 cores · 12 threads
AMD Ryzen 5 5600G6 cores · 12 threads
AMD Ryzen 7 5700X8 cores · 16 threads
AMD Ryzen 5 5600X6 cores · 12 threads
AMD Ryzen 5 5500F6 cores · 12 threads
AMD Ryzen 5 5600F6 cores · 12 threads
AMD Ryzen 5 5600T6 cores · 12 threads

Compatible memory

DDR4

Kingston FURY Beast 8GB (1x8) DDR4-3200 CL168 GB (1x8) · DDR4
Kingston FURY Beast 16GB (2x8) DDR4-3200 CL1616 GB (2x8) · DDR4
VeloxStor 7004-DDR, 8 GB, 1 x 8 GB, DDR4, 3200 MT/s, 288-pin DIMM8 GB (1x8) · DDR4
VeloxStor 7005-DDR, 16 GB, 1 x 16 GB, DDR4, 3200 MT/s, 288-pin DIMM16 GB (1x16) · DDR4
VeloxStor 7006-DDR, 32 GB, 1 x 32 GB, DDR4, 3200 MT/s, 288-pin DIMM32 GB (1x32) · DDR4
VeloxStor 7007-DDR, 8 GB, 1 x 8 GB, DDR4, 3200 MT/s, 288-pin DIMM8 GB (1x8) · DDR4
VeloxStor 7008-DDR, 16 GB, 1 x 16 GB, DDR4, 3200 MT/s, 288-pin DIMM16 GB (1x16) · DDR4
Biwin BXH41632HW1-D16EW 16 GB DDR4 Memory16 GB (2x8) · DDR4

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.

User manual (PDF)

PRIME B550-PLUS AC-HES vs similar motherboards

	ASUS PRIME B550-PLUS AC-HES	ASUS PRIME B550-PLUS	ASUS ROG STRIX B550-A GAMING	ASUS ROG STRIX B550-F GAMING WIFI II
Chipset	B550	B550	B550	B550
Form factor	ATX	ATX	ATX	ATX
Memory slots	4	4	4	4
Max memory	128 GB	128 GB	128 GB	128 GB
Socket	AM4	AM4	AM4	AM4
Memory type	DDR4	DDR4	DDR4	DDR4
Released	2026	—	—	—