MSI B550 Gaming Plus SSD Slots: Specs & Upgrade Guide 2026
The MSI B550 Gaming Plus motherboard features robust SSD slots for 2026 builds. With M.2 and SATA options, it's ideal for gamers seeking speed.
This article details slot count, compatibility, speeds, and free slot tips. Perfect for PCIe 4.0 NVMe upgrades without bottlenecks.
SSD Slot Specifications Overview
Two M.2 slots support ultra-fast storage.
- M.2_1: PCIe 4.0 x4, up to 7000MB/s
- M.2_2: PCIe 3.0 x4 / SATA
- Six SATA 6Gb/s ports
Free SSD Slots After GPU Install
No shared lanes with primary PCIe.
- Both M.2 free post-GPU
- SATA unaffected
- Max 2 NVMe + 6 HDD/SSD
Compatible SSDs for 2026
Top picks for B550.
- Samsung 990 Pro: Gen4 beast
- WD Black SN850X: Gaming optimized
- Crucial T700: Future-proof
Installation Steps & BIOS Setup
Easy upgrades.
- Power off > Install M.2 > Secure screw
- Boot to BIOS > Enable PCIe mode
- Format in Windows Disk Mgmt
Frequently Asked Questions
How many SSD slots on MSI B550 Gaming Plus?
Two M.2 (one PCIe 4.0, one 3.0/SATA) plus six SATA III.
Are M.2 slots free with RTX GPU?
Yes, no lane sharing on B550 chipset.
Max SSD speed supported?
PCIe 4.0 x4: 8GB/s theoretical, real-world 7GB/s.
Does it support RAID SSD?
Yes, RAID 0/1/10 via BIOS for M.2 and SATA.