What does the X4 mean in an PCIe Gen X4 NVME drive?

Hyper x16 Gen 4 Card｜Motherboards｜ASUS Global nvme 4 0 in 3 0 slot
➡️【Mk.com】➡️【Mk.com पर सर्वश्रेष्ठ कैसीनो】✅ऑनलाइन कैसीनो खेलें! ✓ विभिन्न प्रकार के ऑनलाइन कैसीनो गेम खोजें और अपने गेमिंग अनुभव का पूरा आनंद लें ✓! ✅  Due to the forward and backward compatibility, a PCIe GPU will perform like a PCIe GPU card if connected to a PCIe (or in the future nvme slot types 2 SATA type drives only You would need either a card that has 2 NVMe slots, or two seperate cards that each have an NVMe slot

nvme 40 in 30 slot  speeds which is not what the question meant, imo Click to Those are just NVMe to PCIe slot adaptors so technically it is