MSI MPG B550 GAMING PLUS AM4 AMD B550 SATA 6Gbs DDR4 Ryzen 5000 / 4000G / 3000 ATX Motherboard vs ASRock B550 Phantom Gaming 4 AMD AM4 ATX Motherboard
Both are budget AM4 ATX boards on B550 with 4 DIMM slots and 128GB support. The ASRock B550 Phantom Gaming 4 is cheaper at $108.77 at Beach Audio as of November 3, 2026, versus $119.99 at Walmart for the MSI MPG B550 Gaming Plus. Buy the ASRock to save about $11 and get ECC memory support; buy the MSI for its stronger power delivery, RGB controls and front LED strip.
Today the ASRock B550 Phantom Gaming 4 AMD AM4 ATX Motherboard costs $11.22 less at its best price.
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MSI MPG B550 GAMING PLUS AM4 AMD B550 SATA 6Gbs DDR4 Ryzen 5000 / 4000G / 3000 ATX Motherboard
4.4$119.99at WalmartVerified
Choose the MSI MPG B550 Gaming Plus if you want better VRM cooling, RGB lighting control and a front LED strip, and the $11 premium does not bother you.
Pros
- Solid 12+2+1 VRM with heatsinks for Ryzen 7 and Ryzen 9 chips
- Mystic Light RGB control plus a front LED strip for status and color
- Two M.2 slots, one running PCIe 4.0
- EZ Debug LED speeds up no-boot troubleshooting
Cons
- About $11 more than the ASRock
What separates them
| MSI MPG B550 GAMING PLUS AM4 AMD B550 SATA 6Gbs DDR4 Ryzen 5000 / 4000G / 3000 ATX Motherboard | ASRock B550 Phantom Gaming 4 AMD AM4 ATX Motherboard | |
|---|---|---|
| Price as of November 3, 2026 | $119.99 at Walmart | $108.77 at Beach Audio |
| Power delivery | 12+2+1 duet rail with extended heatsinks | 8 power phase design with XXL aluminum heatsink |
| ECC memory support | Not listed | Yes, ECC and non-ECC unbuffered |
| Display outputs | HDMI and DisplayPort | VGA, HDMI and DisplayPort |
| Lighting | Mystic Light RGB, RGB and ARGB headers, front LED strip | Basic RGB headers, no LED strip |
| POST diagnostics | EZ Debug LED | POST Status Checker |
| M.2 and SATA | 2x M.2 (one PCIe 4.0), 6x SATA | 1x Hyper M.2 PCIe 4.0, 6x SATA with RAID 0/1/10 |
Price history
- MSI MPG B550 GAMING PLUS AM4 AMD B550 SATA 6Gbs DDR4 Ryzen 5000 / 4000G / 3000 ATX Motherboard: lowest $101.00 on Nov 3 at Walmart.
- ASRock B550 Phantom Gaming 4 AMD AM4 ATX Motherboard: lowest $102.37 on Nov 3 at Grooves-Inc.com.
Prices at every store
MSI MPG B550 GAMING PLUS AM4 AMD B550 SATA 6Gbs DDR4 Ryzen 5000 / 4000G / 3000 ATX Motherboard
- WalmartNew
In stock
$119.99Free shippingVerified - MSI Online StoreNew
In stock
$119.99Free shippingObserved at 9:34 AM - Micro CenterNew
In stock
$119.99+ $12.99 shippingObserved at 9:34 AM - eBayNew
Availability unknownSold by pacificdiscounts (100% positive, 930 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
$110.00+ $11.55 shippingVerified
Also available at
- WalmartCheck price at Walmart
- eBayCheck price at eBay
- TekmentumCheck price at Tekmentum
Specs compared
| Spec | MSI MPG B550 GAMING PLUS AM4 AMD B550 SATA 6Gbs DDR4 Ryzen 5000 / 4000G / 3000 ATX Motherboard | ASRock B550 Phantom Gaming 4 AMD AM4 ATX Motherboard |
|---|---|---|
| Form Factor | ATX | ATX |
| Socket Type | Socket AM4 | Socket AM4 |
| RAM Type | DDR4 | DDR4 |
| Expansion Slot | PCI Express | PCI Express |
| Chipset | AMD | AMD |
| External Ports | Ethernet, HDMI, DisplayPort, USB | Ethernet, VGA, HDMI, DisplayPort, USB |
| Gaming | Yes | Yes |
| Multiple GPU Support | Crossfire | Crossfire |
| Number Of Memory Slots | 4 Memory Slots | 4 Memory Slots |
| Maximum RAM | 128 GB Max RAM | 128 GB Max RAM |
Questions and answers
- Which is better for a Ryzen 7 or Ryzen 9?
- The MSI MPG B550 Gaming Plus. Its 12+2+1 power stages and larger heatsinks handle high-core chips better than the ASRock's 8-phase design.
- Is the MSI worth the extra $11?
- Yes if you want RGB control, a second M.2 slot and stronger VRMs. No if you just need a cheap board for a Ryzen 5.
- Does the ASRock support ECC memory?
- Yes. It supports ECC and non-ECC unbuffered DDR4, which the MSI listing does not claim.
- Which has better troubleshooting tools?
- Both have debug aids. The MSI uses an EZ Debug LED; the ASRock uses a POST Status Checker with labeled LEDs.
- Do both support Ryzen 5000?
- Yes. Both are B550 boards on AM4 and support Ryzen 5000, 4000G and 3000 chips, though a BIOS update may be needed on early stock.
- Which is better for a small budget build?
- The ASRock. At $108.77 it saves money and covers a Ryzen 5 build fine, with VGA output for older displays.
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