8747L-4I-M.2 is a PCI Express x16 Gen3 PCIe switch Card provides dedicated PCIe 3.0 x4 (32Gb/s) bus bandwidth for each M.2 SSD, and unlocks the true performance potential of NVMe based storage configurations. Ideal for servers & high-end desktop/workstation platforms. Functional Characteristics PLX PEX8747 Switch Controller has a PCIe 3.0 x16 upstream port as well as four PCIe 3.0 x4 downstream ports. Dedicated PCIe 3.0 x16 bus bandwidth fully maximizes NVMe SSDs performance, And dedicated PCIe 3.0 x4 bandwidth for each NVMe M.2 SSD This card does not rely on PCIe bifurcation supported by CPU or PCH Independent, Stand Alone NVMe SSD Solution Supports Windows 10 & Later, Windows 2016 Server, & Linux Kernel 3.3 & later Supports Full-height Bracket and Low-Profile Bracket Applications Suitable for host-centric as well as peer-to-peer traffic patterns, the8747L-4I-M.2 can be configured for a variety of graphics applications. Advantages Suitable for small sized M.2 SSD support PCI Express, It can get the maximum bandwidth and transfer rate while the 4 M.2 SSD installed.