The DGE-560SX Fiber Gigabit PCI Express x 4 Adapter is a high-performance network card that lets businesses take advantage of the PCI Express (PCIe) slots of their servers to enhance network performance with fiber-optic connectivity. The PCIe architecture ensures dedicated input/output (I/O) bandwidth for the adapter, ensuring high performance without bus sharing for Gigabit Ethernet connectivity in fiber-optic networks. With fiber optic cable, distance can reach up to 550m & network speed 2000 Mbps (full-duplex).