Arista SFP+ Transceivers are available in a number of types such as:10G- LR: This SFP+ form factor can transmit data at the speed of 10Gbps over 10 km of distance through a single mode fiber with an LC connector.10G-SR: This SFP+ form factor transmits data at the speed of 10 Gbps over a short range of 300m through a multimode fiber at the wavelength of 850 nm.10G-ER: This 10Gbps SFP+ transceiver type is meant for transferring data over a length of 40 km on a single mode fiber at the wavelength of 1550 nm.All Arista SFP+ Transceivers are MSA compliant and are made fit for connecting Gigabit Ethernet protocols to optical fiber networks.