Fine fiber optic transport of waves of data sent over optical transceiver modules. Transport modules and receiving optical signals. Under the Multi-Source Agreement these form factors are built by companies. Specific standards must be met in their building. Transfer rates are what are used to classify optical transceivers together. Each supports speeds of 1 Gbps to 10 Gbps. Factors known as SFP GBIC module and is 1 Gbps. These factors support a larger than 4 Gbps transmission up to 100Mbps.Modules known as XENPAK, XFP, SFP and X2 + supports speeds up to 10 Gbps of transport. Find a reputable dealer and full knowledge of the optical transceiver modules will be useful when it comes time to make your purchase. You have questions and concerns of networks, therefore, find a fiber network provider with experience will be crucial. You have to have all the information possible to make the right decision when choosing manufacturers and its modules.