ASUS - PRIME B550-Plus (Socket AM4) AMD B550 ATX DDR4 Motherboard - Black

Name: ASUS - PRIME B550-Plus (Socket AM4) AMD B550 ATX DDR4 Motherboard - Black
Brand: ASUS
SKU: 6447947
Rating: 3.6 (22 reviews)

Model: PRIME B550-PLUS

SKU: 6447947

This item is no longer available in new condition. See similar items below

Key Specs
- Chipset: AMD B550
- Form Factor: ATX (The size, arrangement, and physical configuration of the product.)
- Processor Socket: Socket AM4 (PGA 1331) (Type of pin configuration that connects a CPU to a computer’s motherboard.)
- Number of PCI-E Slots: 5 (How many peripheral component interconnect express slots are available.)
- Wireless Networking Standard: No Wi-Fi standard (The wireless networking standard used by the device. Each iteration of the standard developed by the Wi-Fi Alliance corresponds to an existing IEEE 802.11 protocol; for example, standard 802.11ac (or AC) is termed Wi-Fi 5. Refers specifically to the standard the device is designed to use, but ultimately determines product interoperability and backward compatibility including previous versions.)
- Number Of Memory Slots: 4
- Maximum Memory Supported: 128 gigabytes
- Memory Type Supported: DDR4
General
- Brand: ASUS
- Model Number: PRIME B550-PLUS
- Product Name: PRIME B550-Plus (Socket AM4) AMD B550 ATX DDR4 Motherboard
- Color: Black
- Year of Release: 2023
Compatibility
- Chipset: AMD B550
- Chipset Compatibility: AMD
- Form Factor: ATX (The size, arrangement, and physical configuration of the product.)
- Processor Socket: Socket AM4 (PGA 1331) (Type of pin configuration that connects a CPU to a computer’s motherboard.)
- Processor Compatibility: AMD Ryzen 9 3000 Series, AMD Ryzen 7 3000 Series, AMD Ryzen 5 3000 Series, AMD Ryzen 3 3000 Series
- Operating System Compatibility: Windows 11 Home
Slot
- Number of M.2 Slots: 2 (This interface is most commonly used for high-speed solid state drives (SSDs), and is often used in laptops due to its small size.)
- Number of PCI-E Slots: 5 (How many peripheral component interconnect express slots are available.)
- Number Of PCI-E x16 Slots: 2
- Number Of PCI-E x1 Slots: 3
- Number Of Memory Slots: 4
Connectivity
- Power Connector: 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector 1 x 4-pin +12V Power connector (The configuration of the connector as it connects the motherboard to a power supply unit.)
- SATA Connector: 6 x SATA 6Gb/s ports (The configuration of the connector as it connects a computer power supply unit to a SATA-based drive.)
- Fan/Cooling System Connector: 1 x CPU Fan connector, 1 x CPU OPT Fan connector, 3 x Chassis Fan connectors (The configuration of the connector as it connects a computer component to a fan or cooling system.)
- Wireless Connectivity: None (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
- Wireless Networking Standard: No Wi-Fi standard (The wireless networking standard used by the device. Each iteration of the standard developed by the Wi-Fi Alliance corresponds to an existing IEEE 802.11 protocol; for example, standard 802.11ac (or AC) is termed Wi-Fi 5. Refers specifically to the standard the device is designed to use, but ultimately determines product interoperability and backward compatibility including previous versions.)
Ports
- USB Ports: 4 x USB-A 2.0, 6 x USB-A 3.2, 1 x USB-C 3.2 (The number and type of USB ports the product has.)
- Thunderbolt Ports: 0 (The number and type of Thunderbolt ports the product has.)
- Audio Ports: 5
- Number of Audio Channels: 7.1 (The number of discrete channels of sound output. This can be a single number or multiple numbers separated by decimal(s). The first number is the primary, horizontally directed audio channels. The number after the first decimal, if applicable, is the number of subwoofer outputs or channels. The number after the second decimal, if applicable, is the number of height or atmospheric channels designed to immerse the listener by producing overhead sound effects.)
Dimensions
- Product Length: 305 millimeters (The out of box length of the item. Length is measured as the longest dimension of the item.)
- Product Width: 244 millimeters (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Weight: 31.68 ounces (The out of box weight of the item.)
Memory
- Maximum Memory Supported: 128 gigabytes
- Memory Type Supported: DDR4
- Memory Format Supported: UDIMM (Memory module size that will fit with the device.)
- Memory Speeds Supported: 4400 (The RAM's bandwidth rating supported by the device. The number refers to transfer speed. For example, 12800 would indicate that the memory has a theoretical bandwidth of 12,800 megabytes per second (MBs). The higher the number, the faster the speed.)
- Memory Slot Type: 288-pin DIMM
Features
- RAID Support: RAID 0, RAID 1, RAID 10 (RAID 1+0) (A Redundant Array of Independent Disks (RAID) includes a collection of separate disks that your computer recognizes as one disk unit. Each configuration offers a different level of mirroring, striping and read/write speeds.)
Warranty
- Warranty - Parts: 3 years
- Warranty - Labor: 3 years
Other
- UPC: 192876782354

ASUS Prime series motherboards are expertly engineered to unleash the full potential of 3rd gen AMD Ryzen processors. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, PRIME B550 Plus provides daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.

Processor Compatibility - AMD AM4 Socket: Ready for 3rd gen AMD Ryzen processors.
Speed (memory speed supported): 4 x DIMM, Max. 128GB, DDR4
Ultrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 2 Type-A
Graphics: 1 x DisplayPort / 1 x HDMI port
Expansion Slots: 3rd/2nd/1st Gen AMD Ryzen Processors - 1 x PCIe 3.0 x16 (x16 mode)
Operating System: Windows 11, Windows 10 64-bit
Processor Compatibility - AMD AM4 Socket: Ready for 3rd gen AMD Ryzen processors.
Speed (memory speed supported): 4 x DIMM, Max. 128GB, DDR4
Ultrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 2 Type-A
Graphics: 1 x DisplayPort / 1 x HDMI port
Expansion Slots: 3rd/2nd/1st Gen AMD Ryzen Processors - 1 x PCIe 3.0 x16 (x16 mode)
Operating System: Windows 11, Windows 10 64-bit

Q: What type of memory does this motherboard use?

A: This motherboard uses DDR4 type memory.

Q: Does this motherboard have built-in Wi-Fi?

A: No, this motherboard does not have built-in Wi-Fi.

Q: How many M.2 slots does the motherboard have?

A: The motherboard has 2 M.2 slots.

Q: What kind of processors does this motherboard support?

A: This motherboard supports 3rd Gen AMD Ryzen processors.

Q: How many SATA ports are available on this motherboard?

A: This motherboard has 6 SATA 6Gb/s ports.

Q: What is the maximum amount of memory supported by this motherboard?

A: The motherboard supports a maximum of 128 gigabytes of memory.

Q: What operating systems are compatible with this motherboard?

A: This motherboard is compatible with Windows 10 64-bit and Windows 11.

Q: Will the motherboard that ships be the PRIME B550-PLUS or the PRIME B550-PLUS AC-HES which is shown in the image?

A: The image (as of Sept 16) is incorrect. You will receive the PRIME B550-PLUS (not AC-HES).

Customers are saying

Customers are positive about the PRIME B550-Plus motherboard's performance, noting its ability to handle demanding games even in 2024 and when paired with high-end components. However, customers are negative about the lack of Wi-Fi, with several reports indicating the absence of this feature. The motherboard's performance capabilities are frequently praised for their value and effectiveness. Some users experienced issues with the product's advertised features.

This summary was generated by AI based on customer reviews.

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Rated 3 out of 5 stars
NO WIFI-AC! The photos are for a different product
No WiFi! All the photos are of a different product! Once again I've been burned by Best Buy and their occasional practice of having completely wrong images that make you think you are getting a better product than what they are actually selling. Guess I have a bad habit of trusting the pictures. Never again. This one's going back...wasn't a good deal because there is NO WIFI-AC as shown in the photos.
Posted 1 year ago by TheSteverino
Rated 5 out of 5 stars
Bought a mobo
Works exactly as it should, never opened box, very friendly computer people there too.
Posted 1 year ago by Christopher
Rated 5 out of 5 stars
A Reliable, No-Nonsense AM4 Motherboard
The ASUS PRIME B550-Plus is one of those motherboards that doesn’t try to impress you with flashy RGB or gimmicks — it just delivers stable, dependable performance for gamers, creators, and everyday users. Built around the B550 chipset, it supports Ryzen 3000 through 5000 series CPUs, making it a great fit for anyone looking to maximize the AM4 platform. Build quality feels solid right out of the box. The board has a clean, professional look — black PCB with subtle silver accents — and it fits nicely in most ATX cases. Installation is straightforward, and the BIOS is one of the easiest to navigate, especially if you’re new to PC building. ASUS really nailed the setup experience here. Performance is excellent for the price. You get PCIe 4.0 support for your GPU and one M.2 slot, along with a second PCIe 3.0 M.2 slot for extra storage. Memory overclocking works smoothly — hitting 3600 MHz on DDR4 is easy with a decent kit. The VRMs are decent for mid-range CPUs like the Ryzen 5 5600X or even a Ryzen 7 5800X, though it’s not meant for extreme overclocking. Connectivity is another plus: you get plenty of USB ports, including USB-C, dual M.2 slots, and good audio quality for the price range. There’s no built-in Wi-Fi, which might be a downside for some, but an inexpensive Wi-Fi card or adapter solves that easily. Pros: ✅ Great stability and compatibility with Ryzen 3000–5000 CPUs ✅ Clean design and user-friendly BIOS ✅ PCIe 4.0 + dual M.2 slots ✅ Solid VRM performance for mid-range builds Cons: ❌ No built-in Wi-Fi or Bluetooth ❌ Lacks some high-end extras like debug LEDs or reinforced PCIe slots ❌ Not ideal for heavy overclocking Verdict: ⭐ 4.4/5 – The ASUS PRIME B550-Plus is a smart, reliable choice for anyone wanting a solid AM4 foundation without breaking the bank. It’s not flashy, but it’s consistent, stable, and built to last — perfect for gamers and power users who value performance over frills.
Posted 2 months ago by Luis