Overview

  • Supports AMD Ryzen 7 and Ryzen processors
    In an AM4 socket.
  • Up to 4866+MHz
    4 x DDR4 memory slots, support up to 128GB 1 Supports DDR4 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDEC Supports DDR4 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3600/ 3733 / 3866/ 4000/ 4133/ 4266/ 4400+ MHz by A-XMP OC MODE
  • AMD CrossFireX graphics support
    1x HDMI 2.1 port, supports a maximum resolution of 4096×2160 @60Hz 1 2 1x DisplayPort, supports a maximum resolution of 4096×2160 @60Hz 1 Maximum shared memory of 16GB
  • Four 288-pin DDR4 SDRAM DIMM sockets
    Support up to 64GB of system memory.
  • AUDIO
    Realtek® ALC892 Codec 7.1-Channel High Definition Audio Supports S/PDIF output
  • STORAGE
    6x SATA 6Gb/s ports 2x M.2 slots (Key M) M2_1 slot (from AMD Processor) Supports PCIe 4.0/ 3.0 x4 1 Supports SATA 6Gb/s Supports 2242/ 2260/ 2280/ 22110 storage devices M2_2 slot (from AMD B550 chipset) Supports PCIe 3.0×4 Supports 2242/ 2260/ 2280 storage devices
  • EXPANSION SLOTS
    1x PCIe 4.0/ 3.0 x16 slot (PCI_E1) 1x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed 2x PCIe 3.0 x1 slots
  • RAID
    Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices Supports RAID 0 and RAID 1 for M.2 NVMe storage devices
  • USB
    3x USB 3.2 Gen 1 5Gbps ports (1 Type-C internal connector, and 2 ports are available through the internal USB 3.2 Gen 1) 8x USB 2.0 ports (4 Type-A ports back, 4 ports internal USB 2.0 connectors) 2x USB 3.2 Gen 2 10Gbps ports (1 Type-C port and 1 Type-A port) 2x USB 3.2 Gen 1 5Gbps Type-A ports
  • INTERNAL CONNECTORS
    1x 24-pin ATX main power 1x 8-pin ATX 12V power 6x SATA 6Gb/s connectors 2x M.2 slots (M-Key) 1x USB 3.2 Gen 1 5Gbps Type-C port 1x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports) 2x USB 2.0 connectors (supports additional 4 USB 2.0 ports)
  • INTERNAL CONNECTORS
    1×4-pin CPU fan connector 1×4-pin water-pump fan connector 6×4-pin system fan connectors 1xFront panel audio connector 2xSystem panel connectors 1xChassis Intrusion connector 1×4-pin RGB LED connector 2×3-pin RAINBOW LED connectors 1xTPM module connector 1x Clear CMOS jumper

Compare similar

Specifications

Capacity & configuration

Memory Type Supported
DDR4
Memory Slot Type
288-pin DIMM

Dimensions & weight

Product Name
B550 GAMING PLUS (Socket AM4) AMD B550 ATX DDR4 Motherboard
Product Length
304.8 millimeters
Product Width
50.8 millimeters
Product Weight
24 ounces

Features

Brand
MSI
Color
Black
Chipset
AMD B550
Chipset Compatibility
AMD
Form Factor
ATX
Processor Socket
Socket AM4 (PGA 1331)
Processor Compatibility
AMD Ryzen 7 5000 Series
Operating System Compatibility
Windows 10
Number of PCI-E Slots
4
Number of M.2 Slots
2
Number Of PCI-E x16 Slots
2
Number Of PCI-E x1 Slots
2
SATA Connector
SATA 6 Gbps
Fan/Cooling System Connector
6x 4-pin
Wireless Connectivity
None
Wireless Networking Standard
No Wi-Fi standard
USB Ports
5 x USB-A 3.2
Audio Ports
1x Front Audio (JAUD)
Number of Audio Channels
7.1
Number Of Memory Slots
4
Maximum Memory Supported
128 gigabytes
Memory Format Supported
UDIMM
Memory Speeds Supported
4400
Multi-GPU Support
CrossFire
RAID Support
RAID 0
UPC
824142218600

Power & warranty

Model Number
B550GPLUS

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

Customer reviews

Write a review
GaryOct 12, 2026 · Verified purchase ★★★★★

Just a minor upgrade for me - "Upgraded" from an ASRock board to fully support my 5800x3D. No complaints.

CodyOct 1, 2026 · Verified purchase ★★★★★

Honestly a life saver - I’m not one to really do reviews, I am a beginner in pc building and this motherboard was a door to the pc world for me, I find my self buying them again, definitely recommend!

LONDONTJul 31, 2026 · Verified purchase ★★★★★

B550 MOBO - Good motherboard for a build awhile box worked straight out of the box no problems.

JoshuaWJul 24, 2026 · Verified purchase ★★★★★

Great! - Works great on a budget, and has the features I needed.

Add your review

Your email address will not be published. Required fields are marked *

Questions & answers

Ask a question

Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
Talk to our team(888) 419-6820 · Mon–Sat