LFP403 Features This Small Form-Factor Pluggable (SFP) Optical Transceiver enables you to adapt an SFP slot to a fiber interface. Because it's transparent to data, this SFP is compatible with any network standard operating at speeds of up to 155 Mbps. Ideal for use with Ethernet, Fast Ethernet, and 155-Mbps ATM. Supports an extended operating temperature of -40° to 176°F (-40° to +85°C).