Transceiver 1Gb Short-Range SFP for WatchGuard Firebox M Models - For Data Networking, Optical Network 1 1000Base-X Network - Optical FiberGigabit Ethernet - 1000Base-X Supports optical fiber cable for durable performance, minimal signal loss, and fast data transfers to greater distances Up to 10x faster than standard Ethernet connection and provides high-performance With 1000Base-X technology, get up to 1000Mbps data transfer rate over supported network cable