C2G/Cables to Go 39561 HP J4858C Compatible 1000Base-SX MMF SFP (mini-GBIC) Transceiver Module Form Factor: Plug-in module Cabling Type: 1000Base-SX Data Transfer Rate: 1.25 Gbps This SFP (mini-GBIC) transceiver module is designed for use with HP network equipment and is equivalent to HP part number J4858C. This transceiver is built to meet or exceed the specifications of the OEM and to comply with Multi-Source Agreement (MSA) standards. The transceiver is hot-swappable input/output device which allows a Gigabit Ethernet port to link with a fiber optic network. OEM specific configuration data is loaded on to the EEPROM of the transceiver at the factory, allowing this transceiver to initialize and perform identically to an OEM transceiver. This transceiver may be mixed and deployed with other OEM or third party transceivers and will deliver seamless network performance. Connector 1: (1) SFP Male Connector 2: (2) LC Female