Dell FINISAR 10Gbps SFP+ module FTLX8571D3BCL-RFB is a network transceiver for 10-Gigabit Ethernet links over multimode fiber. Its hot-pluggable SFP+ format is designed for insertion into equipment with a suitable SFP+ interface.
The Finisar specification for the matching base model lists an 850nm VCSEL and a duplex LC connector. It supports links up to 300m on 2000 MHz-km multimode fiber, with built-in digital diagnostics for monitoring through the supported interface. The listing identifies 0FTLX8571D3BCL-RFB as the OEM reference this module replaces.