We offer a high-quality SFP transceiver module that is 100% compatible with the original HP J4858A/B/C.This SFP module is carrier-class quality and can be fully trusted
for your most demanding LAN/WAN applications, voice projects, or network deployments.All product carry a 3year warranty and lifetime free technical support.
100% HP Compatible
1000BASE-SX Multimode 850nm 550M SFP Transceiver Module
High Quality with CE, FCC
1 Year Replacement and 3 Years Warranty