The 4 Gigabit PCI Express Single port Fibre Channel Adapter is a 64-bit address/data, short form factor PCI Express adapter with an LC type external fiber connector. With the use of appropriate optical fiber cabling, this adapter provides the capability for a network of high-speed local and remote located storage. The adapter will auto-negotiate for the highest data rate between adapter and an attaching device at 1Gbps, 2Gbps or 4Gbps of which the device or switch is capable. When used with IBM Fiber Channel storage switches supporting long-wave optics, distances up to 10 kilometers are capable running at either 1Gbps, 2Gbps, or 4Gbps data rates.The 4 Gigabit PCI Express Single port Fibre Channel Adapter can be used to attach devices either directly, or by means of Fiber Channel switches.