BlackBox, LFP411, SFP, 1250-Mbps Fiber with Extended Diagnostics, 850-nm Multimode, 550 m LC Features: This SFP optical transceiver enables you to adapt an SFP slot to a fiber interface. Because its transparent to data, this SFP is compatible with any network standard operating at speeds of up to 155 Mbps. Supports an extended diagnostics and extended operating temperature of -40 to 176F (-40 to +85C). Ideal for use with Ethernet, Fast Ethernet, and 155-Mbps ATM. Reports basic link characteristics such as SFP type, length of fiber link, wavelength, and bit rate. Extended diagnostics enable this SFP to also report information such as temperature, TX and RX power, voltage, and bias current. Hot-pluggable interface enables you to change SFPs on the fly when your network requirements change. Compatible with SFP slots on most network devices.