Cisco 100GBASE Quad Small Form-Factor Pluggable (QSFP+) Modules - QSFP-100G-SR4-S= 100GBASE SR4 QSFP Transceiver, MPO, over OM4 MMF 100 m - QSFP-40/100-SRBD= 100G and 40GBASE SR-BiDi QSFP Transceiver, LC, OM4 MMF 100 m - QSFP-100G-PSM4-S= 100GBASE PSM4 QSFP Transceiver, MPO, over SMF 500 m - QSFP-100G-SM-SR= 100GBASE CWDM4 Lite QSFP Transceiver, over SMF, 10-60C 2 km - QSFP-100G-CWDM4-S= 100GBASE CWDM4 QSFP Transceiver, LC, over SMF 2 km - QSFP-100G-LR4-S= 100GBASE LR4 QSFP Transceiver, LC, over SMF 10 km Chúc các bạn có lựa chọn hợp lý!