are pcie slots backwards compatible
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I recently purchased an B550-A-PRO motherboard for a new build PC. This board has 2 m.2 slots, with the m2_1 slot being both pcie and sata compatible.
The Truth About Backwards Compatibility of PCIe 5.0 - PC Guide
Is PCIe 5.0 Backwards Compatible? Explore the compatibility of PCIe 5.0 with older versions. Discover what it means for your tech upgrades.
The best Android phones with microSD card slots - Android Authority
It’s also worth noting that SD Express cards are not backwards compatible with UHS-II (or UHS-III), so if you try to plug one into a device with a UHS-II slot, it’ll be limited to UHS-I speeds.