... transceiver module for MMF, 850-nm wavelength, LC duplex connector, extended temperature rangeSFP-10G-LRM=10GBASE-LRM SFP+ transceiver module ... transceiver module for SMF, 1310-nm wavelength, LC duplex connector, extended temperature rangeSFP-10G-ER=10GBASE-ER SFP+ transceiver ... MMF, 1310-nm wavelength, SC duplex connectorX2-10GB-T10GBASE-T X2 transceiver module for CAT6A/CAT7 cable, copper, RJ- ...