XIC PE4165-4IL is a high performance, low dielectric loss factor interface conversion card. It connects NVMe SSD or PCIe connectors via SlimSAS (SFF-8654) 74pin connector, supports up to 4 PCIe devices or NVMe SSDs. The bandwidth of the card is the bandwidth that the PCIe slot of the motherboard can support.
The Motherboard with CPU and BIOS needs to support bifurcation to ensure PCIe x16 link width to bifurcate two x8 link width or four x4 link width for NVMe SSD, Otherwise this card can only support PCIe link width of one device.