Compatible with PCIE 3.0/4.0 Standards for Full-Speed Transmission: The adapter card supports both PCIE 3.0 and PCIE 4.0 standards, providing up to four X4 full-channel, full-speed transmissions to maximize data transfer rates.
This product would be ideal for users who require an M.2 PCIe expansion card to support four drives in soft RAID for enhanced storage performance.