Dell RN84N-RFB is a refurbished SFP+ optical transceiver for 10GBASE-LR network links. It provides a 10 Gbps optical interface in a compact module format for network equipment with a compatible SFP+ port.
The listing specifies single-mode fibre and a 1310 nm wavelength, details suited to long-reach optical links. This makes the module useful for connecting network devices over single-mode fibre where the equipment supports the specified interface. The item is supplied as the refurbished transceiver; no additional package contents are confirmed.