This Dell 331-5309 compatible SFP transceiver provides 1000Base-LX throughput up to 10km over single-mode fiber (SMF) at a wavelength of 1310nm using a LC connector. compatible with the equivalent Dell transceiver. This easy to install, hot swappable transceiver has been programmed, uniquely serialized and data-traffic and application tested to ensure that it will initialize and perform identically. Digital optical monitoring (DOM) support is also present to allow access to real-time operating parameters. All of our transceivers are Trade Agreements Act (TAA) compliant..