10GBASE-LR X2 V04, 10-2036-04. Cisco X2-10GB-LR 10GBASE-LR X2 transceiver module for SMF, 1310-nm wavelength, SC duplex connector. CISCO-SUMITOMO X2-10GB-LR. Cisco X2-10GB-LR 10-Gigabit Ethernet Transceiver Modules Compatibility Matrix.
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