The PCIe 3.0 x8 to 4-Port U. 2 (SFF-8643) NVMe SSD Switch Adapter Card with PLX8747 PCIe switch chip delivers high-performance storage expansion, allowing you to connect up to four U. 2 NVMe SSDs through a single PCIe 3.0 x8 slot. Designed for servers, workstations, and enterprise storage systems, this adapter maximizes bandwidth efficiency while maintaining low latency for high-speed data transfers.