RJ45 GBIC Transceivers are designed to deliver Gigabit Ethernet connectivity on copper networks. Almost all the brands are manufacturing RJ45 GBIC Transceivers that can connect Gigabit Ethernet ports to copper networks. The normal data rate delivered by RJ45 GBIC Transceivers is 155Mbps and 100Mbps. One of the brands has recently developed RJ45 GBIC Transceivers that are able to deliver data rate of 10Gbps on the copper transmission media. However, the data reach of this transceiver is restricted to 30m only as opposed to normal range of 100m and 300m, as found in normal RJ45 GBIC Transceivers. RJ45 GBIC Transceivers are given a compact shape now and are known as mini-GBIC or SFP transceivers. Except the size, all the features remain as such in these small size GBIC transceivers with RJ45 connector.