... wavelength, LC duplex connector, extended temperature rangeSFP-10G-ER=10GBASE-ER SFP+ transceiver module for SMF, 1550-nm, ... (100-GHz ITU grid)XENPAK TransceiversXENPAK-10GB-ER=10GBASE-ER XENPAK transceiver module for SMF, 1550-nm ... wavelength, SC duplex connectorXENPAK-10GB-ER+=10GBASE-ER XENPAK transceiver module for SMF, 1550-nm wavelength ... Module Orignal SFP-10G-SR 10GB Optical module SFP+