The DELL XYD50 1g/10g Dual Rate SFP+ Optical Transceiver is designed for high-performance data communication, supporting both 10GBASE-SR and 1000BASE-SX standards. Dell Technologies provides optical and cabling options for each Ethernet speed. For the shortest connections, passive copper direct attach cable (DAC) is a simple and cost-effective. The Dell™ SFP28 transceiver delivers fiber connectivity to extend the range of your network. The Dell networking SR Optic, SFP28 transceiver prov.