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OEM SKU: FN-TRAN-QSFP28-LR 

Fortinet Compatible Double Fiber 100GBASE-LR4 QSFP28 Module (Tx/Rx 4 LAN WDM lines:1295.56, 1300.05, 1304.58, 1309.14, 103.125 Gbps, Max. 10km over SMF, 6.6 dB, Temp. 0-70C, LC Connector)

OEM SKU: DWDM-25G-SFP28-10-38 

Multi-Vendor Compatible DWDM 25G SFP28 Module (Tx/Rx Ch. 38 (1546.92 nm)/17-61, ITU Grid: C-Band 100 Ghz, Gbps, Max. 10km over SMF, 12.5 dB, Temp. 0-70C)