ASUS Prime B550-PLUS AC-HES AMD AM4 (3rd Gen Ryzen) ATX motherboard (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
AMD AM4 Socket and PCIe 4.0: The perfect pairing for 3rd Gen AMD Ryzen CPUs
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 heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2 utility
5X Protection III: all-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O
Boosted Memory Performance: ASUS OptiMem proprietary trace layout allows memory kits to operate at higher frequencies with lower voltages to maximize system performance.
Enhanced Power Solution: 8+1 DrMOS power stages with high-quality alloy chokes and durable capacitors to provide reliable power for the last AMD high-count-core CPUs
Aura Sync RGB: Synchronizable LED effects across a wide range of compatible PC gear with an RGB LED header and Addressable Gen 2 RGB header for greater customization
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Overview
Specs
Reviews (1,829)
Learn more about the ASUS PRIME B550-PLUS AC-HES
Model
Brand
ASUS
Model
PRIME B550-PLUS AC-HES
Part Number
PRIME B550-PLUS AC-HES
Supported CPU
CPU Socket Type
AM4
CPU Type
Ryzen 3000 Series / Ryzen 4000G Series / Ryzen 5000 Series / Ryzen 5000G Series
AMD Ryzen 5000 Series / 3000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x16 mode) AMD Ryzen 5000 G-Series / 4000 G-Series Desktop Processors 1 x PCIe 3.0 x16 slot (supports x16 mode)
PCI Express 3.0 x16
AMD B550 Chipset 1 x PCIe 3.0 x16 slot (supports x4 mode)* 3 x PCIe 3.0 x16 slots (support x1 mode)* *PCIE 3.0 X16_4 will run x1 mode when any of the PCIE 3.0 x16_2/3/5 slots is occupied. **Support PCIe bifurcation for RAID on CPU function.
Storage Devices
Serial ATA (SATA)
6 x SATA 6Gb/s
M.2
AMD Ryzen 5000 Series/ 3000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 & SATA modes) AMD Ryzen 5000 G-Series/ 4000 G-Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes) AMD B550 Chipset M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)
*M.2_2 shares bandwidth with SATA6G_56. When M.2_2 is populated, SATA6G_56 will be disabled.
SATA RAID
0/1/10
Onboard Audio
Audio Channels
Realtek ALC897/887 7.1 Surround Sound High Definition Audio CODEC - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Rear optical S/PDIF out port - Premium Japanese audio capacitors - Dedicated audio PCB layers - Unique de-pop circuit
Onboard LAN
Max LAN Speed
1Gbps
Wireless LAN
Wi-Fi 802.11 ac
Bluetooth
Bluetooth 5.0
Rear Panel Ports
Back I/O Ports
2 x USB 3.2 Gen 2 ports (1 x Type-A + 1 x USB Type-C) 2 x USB 3.2 Gen 1 ports (2 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 1 x HDMI port 1 x ASUS Wi-Fi Module 1 x Realtek 1Gb Ethernet port 5 x Audio jacks 1 x Optical S/PDIF out port
Internal I/O Connectors
Onboard USB
1 x USB 3.2 Gen 1 connector (supports USB Type-C) 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports 2 x USB 2.0 headers support additional 4 USB 2.0 ports
Other Connectors
Fan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin AIO Pump header 2 x 4-pin Chassis Fan headers
Storage related 2 x M.2 slots (Key M) 6 x SATA 6Gb/s ports
Miscellaneous 2 x AURA Addressable Gen 2 headers 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (AAFP) 1 x SPI TPM header (14-1pin) 1 x 20-3 pin System Panel header with Chassis intrude function 1 x Thermal Sensor header
Physical Spec
Form Factor
ATX
Dimensions (W x L)
12.0" x 9.6"
Power Pin
1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector
Software Feature
Windows 11
Supported
Features
Features
ASUS 5X PROTECTION III - DIGI+ VRM - LANGuard - Overvoltage Protection - SafeSlot Core - Stainless-Steel Back I/O ASUS Q-Design - Q-DIMM - Q-Slot ASUS Thermal Solution - VRM heatsink design AURA Sync - Addressable Gen 2 RGB headers ASUS Exclusive Software Armoury Crate - AURA Creator - AURA Sync AI Suite 3 - Performance and Power Saving Utility TurboV EVO EPU DIGI+ VRM Fan Xpert 2+ - EZ update ASUS CPU-Z AI Charger DAEMON Tools Norton Anti-virus software (Free Trial version) WinRAR UEFI BIOS ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode
Packaging
Package Contents
Cables 2 x SATA 6Gb/s cables Miscellaneous 1 x ASUS Wi-Fi moving antennas 1 x I/O Shield 1 x M.2 SSD screw package Installation Media 1 x Support DVD Documentation 1 x User manual
Additional Information
First Listed on Newegg
July 02, 2025
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Warranty, Returns, And Additional Information
Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.