here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
- $138.99
- Free 88-day Returns
$128.99
Add to PC build list
Login to Make an Offer
Sold by Newegg
Shipped by Newegg
Add to Wish List(Found on 59 wish lists)
Best Sellers
Top Rated- $151.04
- + FREE SHIPPING
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
+
+
Overview
Specs
Reviews (57)
See all Q & A 
Any questions? Ask CelesteSM will help you find out quickly.
Try me now
PRIME B550-PLUS AC-HES
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 3 years
- Limited Warranty period (labor): 3 years
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-510-739-3777
- Support Website
- View other products from ASUS
LOADING...
LOADING...
The ASUS Prime B550-PLUS AC-HES is an ATX AM4 motherboard for Ryzen 3000, 4000G, 5000, and 5000G processors, suited to desktop builders who want DDR4 memory support, two M.2 slots, PCIe expansion, and built-in Wi-Fi 5 and Bluetooth 5.0.
Recommended For
- PC builders using a supported Ryzen 5, such as the Ryzen 5 5600X, for gaming and everyday desktop work who want a full-size AM4 board with built-in Wi-Fi. Community advice describes the Prime B550-Plus as a reasonable fit for a 5600X-class CPU.
- AM4 owners refreshing a desktop around a supported Ryzen 3000- or 5000-series CPU who want to reuse DDR4 memory and add PCIe 4.0 graphics or storage, rather than move to a new platform.
- Desktop builders installing multiple drives who want two M.2 slots plus SATA storage for a mix of NVMe drives and existing SATA SSDs or hard drives.
- Builders who need wireless networking and everyday peripheral connectivity on a stationary PC, and whose home network does not require Wi-Fi 6 or faster-than-gigabit wired Ethernet.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Ryzen desktop builds needing an ATX motherboard with DDR4 memory support, dual M.2 storage, Wi-Fi, and wired Ethernet |
| Processor And Platform | AMD AM4 socket with AMD B550 chipset; supports Ryzen 3000, 4000G, 5000, and 5000G Series processors |
| Memory Configuration | Four DDR4 DIMM slots, up to 128GB in dual-channel mode; supports unbuffered ECC memory and Intel XMP 2.0, with memory speeds up to 4866 MT/s via overclocking |
| Expansion Slots | One PCIe x16 slot runs at PCIe 4.0 with Ryzen 3000/5000 processors or PCIe 3.0 with Ryzen 4000G/5000G processors; additional chipset-connected PCIe 3.0 slots provide x4 and x1 modes |
| Storage And RAID | Two M.2 Key M slots support 2242, 2260, 2280, and 22110 drives; the primary slot supports PCIe 4.0 x4 with Ryzen 3000/5000 processors and PCIe 3.0 x4 with Ryzen 4000G/5000G processors, while the second supports PCIe 3.0 x4. Six SATA 6Gb/s ports support RAID 0/1/10; using the second M.2 slot disables SATA ports 5 and 6 |
| Networking And Wireless | Wi-Fi 5 (802.11ac), Bluetooth 5.0, and one 1Gb Ethernet port |
| USB And Display Connectivity | Rear I/O includes USB 3.2 Gen 2 Type-A and Type-C, two USB 3.2 Gen 1 Type-A, two USB 2.0 Type-A, DisplayPort, and HDMI; onboard headers add front-panel USB 3.2 Gen 1 Type-C, two USB 3.2 Gen 1 ports, and four USB 2.0 ports |
| Audio | Realtek 7.1-channel HD audio with five audio jacks, optical S/PDIF output, and support for playback up to 24-bit/192 kHz |
| Cooling, RGB And Protection | VRM heatsink, CPU/AIO/chassis fan headers, two Addressable Gen 2 RGB headers, and ASUS 5X Protection III features including LANGuard, overvoltage protection, SafeSlot Core, and stainless-steel back I/O |
| Power Connectors | 24-pin main power and 8-pin +12V power connectors |
| Form Factor And Compatibility | ATX motherboard measuring 12.0 × 9.6 inches; supports Windows 11 |
| Model Identifiers | ASUS Prime B550-PLUS AC-HES |