Ssd sata and ssd nvme pcie slot compatibility

Can You Help me Understand This SATA NVMe PCIe SSD Gen nvme gen 4 in gen 3 slot
➡️【Mk.com】✅Casino · आपका पसंदीदा बिग फिश कैसीनो गेम अब ➡️【Mk.com】✅ पर उपलब्ध है! मुक्त करने के लिए खेलते हैं। स्पिन करें, प्रतिस्पर्धा करें, दिखावा करें और दोस्त बनाएं!  Gen 4 SSDs aren't worth it unless you're working with large files and doing a lot of sequential readwrites nvme m2 slot motherboard Kinda odd he spent nearly 4 minutes talking about the difference between Gen 3 and Gen 4

nvme gen 4 in gen 3 slot For example I have two SSD bays the first one supports Gen 3 x 4 speeds the second one only supports Gen 3 x 2 speeds because there are a