Gigabit Ethernet switch with SFP module slots, or any MSA or Cisco compliant SFP port. Must be used with Gigabit Fiber WDM Bi-Directional SFP Optical Transceiver Module, model 507486. Data transfer rate: 1000 Mbps. One 1000Base-LX single-mode Fiber LC duplex port. Fiber distance support: up to 10 km (6.2 mi.). WDM (wavelength division multiplexing) technology utilizes only one strand of fiber to transmit data on separate receive and transmit wavelengths. Wavelengths: receive (RX), 1550 nm; transmit (TX), 1310 nm. Compliant with the SFP Multi-Source Agreement (MSA). Cisco compatible. SFP standard form factor. Supports digital diagnostics monitoring (DDM). Low EMI due to fully metallic housing. Up to 1.25 Gbps bi-directional communication. Supports hot-plugging. Three-Year Warranty.