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

4*NVMe SSD for 2242, 2260, 2280mm

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

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.

Supports Full-height Bracket and

Low-Profile Bracket