This HP J4858C-2KM compatible SFP+ transceiver provides 10GBase-LR throughput up to 10km over FALSE at a wavelength of 1310nm using a LC connector. It is guaranteed to be 100% compatible with the equivalent HP 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. We stand behind the quality of our products and proudly offer a limited lifetime warranty.