MPG B550 Gaming Plus
The MSI MPG B550 Gaming Plus is a ATX AM4 motherboard on the B550 chipset. It supports DDR4 memory up to 4,400 MT/s and 2 M.2 slots. It's out of stock at the retailers we track right now, but the specs below still apply whenever it returns.
Prices update regularly and may differ at the retailer. This page contains affiliate links.
MaxMyBuild scores
How we score →How well the MPG B550 Gaming Plus is equipped for gaming and for productivity, scored 0–100 from its specs. Scores are fit-for-purpose: a capable board can top the gaming score without being the most expensive. Each factor is judged against what AM4 processors can use, so the score compares this board with the others you could buy for the same chip.
Weighs CPU power delivery, memory speed support, the GPU PCIe slot, Wi-Fi version, and M.2 storage — the things that actually matter for a gaming build.
Rewards fast, plentiful M.2 storage and USB I/O, PCIe expansion, memory capacity and slots — what matters for content creation and heavy multitasking.
CPU power
252 W
Strong · 1.7x
Wired for about 252 W, roughly 1.7x the 142 W that the top Ryzen 9 chips pull, so nothing on this socket will run it short of power. The figure comes from its 2x5+2 power-stage (VRM) layout and 8 EPS connectors. It is a rating of what the board is built to deliver, not a measurement, so treat it as headroom rather than a guarantee.
Specifications
Platform
- Chipset
- B550
- Socket
- AM4
- Form factor
- ATX
- MSRP
- $150.00
Memory
- Type
- DDR4
- Slots
- 4
- Max speed
- 4,400 MT/s
- Max capacity
- 128 GB
- Channels
- 2-channel
- ECC / memory
- UDIMM
Power & VRM
- CPU power
- 252 W
- Phase config
- 2x5+2
- VRM stages
- 1H/1L
- EPS power
- 8
Storage & Expansion
- M.2 slots
- 2
- M.2 layout
- 1× PCIe 4.0 ×4, 1× PCIe 3.0 ×4
- M.2 heatsinks
- Slots 1
- SATA ports
- 6 SATA3
- PCIe ×16 slots
- 1× PCIe 4.0 ×16, 1× PCIe 3.0 ×4
- Other PCIe slots
- 2× PCIe 3.0 ×1
Ethernet & Wi-Fi
- Realtek RTL8111H
- 1 GbE
- Ethernet ports
- 1
- Wi-Fi
- None
USB & I/O
- Rear USB-A
- 4× USB 2.0, 2× 5 Gbps, 1× 10 Gbps
- Rear USB-C
- 1× 10 Gbps
- Front USB-C
- 1× 10Gbps
- Front USB 3 headers
- 1
- Front USB 2 headers
- 2
Audio & Video
- Audio codec
- Realtek ALC892
- Audio jacks
- 5
- S/PDIF out
- Yes
- HDMI
- 1 port
- DisplayPort
- 1 port
- USB-C video
- None
Cooling, RGB & Design
- Fan headers
- 8
- 12V RGB headers
- 1
- 5V ARGB headers
- 2
- PCB colour
- Black
- Heatsink colour
- Gray
Onboard & Diagnostics
- BIOS Flashback
- Yes (rear)
- Diagnostics
- Debug LEDs
- TPM header
- Yes
Compare the MPG B550 Gaming Plus against every other board on the motherboard comparison table. Not sure it fits your chip? The socket compatibility guide explains AM4 pairings.
Where to buy the MPG B550 Gaming Plus
Every in-stock retailer offer we track, cheapest first.
Currently out of stock
The MPG B550 Gaming Plus isn’t in stock at the retailers we track right now. Prices refresh daily, so check back — or compare other in-stock boards.
Browse in-stock motherboardsWhich CPUs fit the MPG B550 Gaming Plus?
Compare all CPUs →In-stock AM4 processors this board can run, socket-matched and within its 252 W power budget, ranked by gaming value (performance per dollar).
| Processor | Cores | Gaming | From | |
|---|---|---|---|---|
| Ryzen 5 5600 AMD | 6/12 | 52.0 | $100.90 | |
| Ryzen 5 2400GOEM / tray AMD | 4/8 | 24.6 | $50.96 | |
| Ryzen 7 3700XOEM / tray AMD | 8/16 | 41.5 | $92.00 | |
| Ryzen 5 3600XOEM / tray AMD | 6/12 | 37.5 | $83.53 | |
| Ryzen 5 5500 AMD | 6/12 | 38.7 | $89.95 | |
| Ryzen 7 5700XOEM / tray AMD | 8/16 | 55.3 | $134.00 | |
| Ryzen 5 4500 AMD | 6/12 | 33.5 | $89.99 | |
| Ryzen 5 5600XOEM / tray AMD | 6/12 | 53.7 | $149.99 |
OEM / tray is the bare processor: no retail box and no cooler in the package, and the warranty is handled by the seller. The chip itself is the same.
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