How to Choose a PCIe Card?
If you're working with wired networking but are not satisfied with the ready-made system, you may want to consider purchasing a PCIe card. Note that the premise is that your computer must have at least one available PCI Express slot, and you need to consider the following factors when purchasing:
PCIe Card Version and Slot Width: This is to ensure that the type of PCIe card is compatible with your current device and network environment.
Protocol standard: Before purchasing, you need to determine whether the network card supports the standards you need, such as RDMA, RoCE, iSCSI, and FCoE.
Controller: Controller chips from Intel, Broadcom, Mellanox and Realtek are the main trend.
