AddOn HP J4858C Compatible TAA Compliant 1000Base-SX SFP Transceiver (MMF, 850nm, 550m, LC)ACP's industry standard SFP is a hot swappable input output device that plugs into a Gigabit Ethernet slot, linking the port with the fiber optic network. The ACP J4858C AO SX transceiver provides a full duplex gigabit solution up to 550 meters on multimode fiber. ACP's transceiver SFP is 100% compliant for all of our networking product lines. ACP transceiver is factory loaded with OEM specific configuration data required for networking compliance.