100% compatibility with HP J4858C guaranteed Star Tech. com lifetime warranty on all Star Tech. com SFP modules Maximum transfer distance of 550 m (1804 ft) - SFP (Mini-GBIC) meets or exceeds OEM specifications SFP transceiver module complies with MSA industry standards 1000BASE-SX fiber transceiver has low power consumption: < 1 W - Hot-swappable with other fiber optic modules Multimode connector - DDM: Yes - MTBF: 3 381 761 hours - Max. Data Transfer Rate: 1. 25 Gbps