XFP-10GZR-OC192LR ORIGINAL CISCO XFP-10GZR-OC192LR CISCO OPTICAL TRANSCEIVER XFP-10GZR-OC192LR Multi-rate 10GBASE-ZR and OC-192/STM-64 LR XFP Module for SMF XFP-10GBX-U-1270 10GBASE-BX-U single fiber XFP,Tx1270nm/Rx1330nm,20Km XFP-10GBX-D-1330 10GBASE-BX-D single fiber XFP,Tx1330nm/Rx1270nm, 20Km XFP-10GLR-OC192SR= Cisco multirate XFP transceiver module for 10GBASE-LR Ethernet OC-192/STM-64,SMF, dual LC connector XFP10GLR-192SR-L= Cisco multirate XFP transceiver module for 10GBASE-LR Ethernet and OC-192/STM-64 short-reach (SR-1) Packet-over-SONET/SDH (POS) applications, SMF, dual LC connector, low power XFP-10GER-OC192IR= Cisco multirate XFP transceiver module for 10GBASE-ER Ethernet and OC-192/STM-64 intermediate-reach (IR-2) Packet-over-SONET/SDH (POS) applications, SMF, dual LC connector XFP-10GER-192IR+= Cisco multirate XFP transceiver module for 10GBASE-ER Ethernet and OC-192/STM-64 intermediate-reach (IR-2) Packet-over-SONET/SDH (POS) applications, SMF, dual LC connector XFP10GER-192IR-L= Cisco multirate XFP transceiver module for 10GBAS-ER Ethernet and OC-192/STM-64intermediate-reach (IR-2) Packet-over-SONET/SDH (POS) applications, SMF, dual LC connector XFP-10GZR-OC192LR= Cisco multirate XFP transceiver module for 10GBASE-ZR Ethernet and OC-192/STM-64 long-reach Packet-over-SONET/SDH (POS) applications, SMF, dual LC connector XFP-10G-MM-SR= Cisco 10GBASE-SR Ethernet XFP transceiver module for MMF, dual LC connector