B550 Phantom Gaming 4 Spec and Price in the United States
An ATX AM4 board on the AMD B550 chipset with a PCIe 4.0 x16 primary slot and a second x16-length slot wired x4. Four DDR4 DIMM slots take up to 128GB, and the board carries two M.2 slots and six SATA ports. Networking is Gigabit Ethernet only.
Tied 34th of 1869 models in the Motherboards catalog on RAM slots — 1241 models share this figure. Tied 792nd of 1869 models in the Motherboards catalog on Max memory — 720 models share this figure.
Prices exclude sales tax.
The last tracked price for B550 Phantom Gaming 4 in the United States was $107.61 at Amazon.com, captured 2026-10-12. Across 2 tracked merchants and 874 days of recorded prices, the 90-day median for B550 Phantom Gaming 4 is $79.99 and the lowest recorded price is $69.99. This site began capturing prices on July 30, 2026; for Amazon listings, prices dated earlier come from Keepa's price history.
Captured periodically and may have changed.
- B550 Phantom Gaming 4
Each point is one day's recorded price, not a list price. Points dated before July 30, 2026, when this site began capturing prices, come from Keepa's Amazon price history. How we track prices
Specifications
- Socket
- AM4
- Chipset
- B550
- Form factor
- ATX
- Memory type
- DDR4
- RAM slots
- 4
- Max memory
- 128 GB
- M.2 slots
- 2
- PCIe x16 slots
- 2
- PCIe version
- 4.0
- SATA ports
- 6
- LAN speed
- 1 GbE
- Wi-Fi
- No
Guides for this category
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.