The ASUS Hyper M.2 x16 Gen 4 Card is a PCIe expansion card designed to add up to four NVMe M.2 SSDs to a system, supporting both PCIe 4.0 and 3.0. It's built for high-performance RAID configurations on AMD TRX40/X570 and Intel platforms, offering up to 256 Gbps transfer speeds. The card features a two-phase power solution, a large heatsink, and an active fan to ensure optimal SSD performance and reliability.