![Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics](https://m.media-amazon.com/images/I/91nx+MhjjwL.jpg)
Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics
![Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics](https://m.media-amazon.com/images/I/81QbZcKRiDL._AC_UF350,350_QL80_.jpg)
Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics
![Msi B550a PRO motherboard. Anyone know what the two spring buttons on the “ pro series” plate are for? They seem to actuate but no idea what they do and nothing in the Msi B550a PRO motherboard. Anyone know what the two spring buttons on the “ pro series” plate are for? They seem to actuate but no idea what they do and nothing in the](https://i.redd.it/zlyzrnohb9071.jpg)
Msi B550a PRO motherboard. Anyone know what the two spring buttons on the “ pro series” plate are for? They seem to actuate but no idea what they do and nothing in the
![MSI B550-A PRO Not turning on at all. I think it's faulty, have I missed anything? - Troubleshooting - Linus Tech Tips MSI B550-A PRO Not turning on at all. I think it's faulty, have I missed anything? - Troubleshooting - Linus Tech Tips](https://pbs-prod.linustechtips.com/monthly_2021_05/image.png.bfb17af9525c600a18f04d7dda3cd740.png)
MSI B550-A PRO Not turning on at all. I think it's faulty, have I missed anything? - Troubleshooting - Linus Tech Tips
![Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics Amazon.com: MSI B550-A PRO ProSeries Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX) : Electronics](https://m.media-amazon.com/images/I/917DzuUbxxL.jpg)