Product DescriptionDell RT3WM 40Gb/s 40GBase-ESR Multi-Mode Fibre 850nm 300m Duplex LC Connector QSFP+ Transceiver ModuleProduct Condition:NewGeneral InformationProduct TypeQSFP+ Technical InformationMaximum Data Transfer Rate40 Gb/sEthernet Standard40 Gigabit Ethernet Fiber Optic ModeMulti-mode OS PlatformPC Expansion Slots DetailsQSFP+ Transciever-Modules UsageSwitching Network QoSYes Cable Standard Fiber/Twisted Pair850 nm Maximum Distance Supported300 mInterfaces/Ports Details x x x x LC LC Duplex,Connector Duplex,Connector Duplex,Connector Duplex,Connector 40GBase-eSR4 40GBase-eSR4 Network Network Optical Fiber Optical Fiber Optical Fiber Optical Fiber Physical CharacteristicsForm FactorDuplex,Connector MiscellaneousAssembly RequiredYes Eco FriendlyYes