You are purchasing aCisco QSFP-100G-CWDM4-S 100GBASE CWDM4 QSFP Transceiver (Part Number: 10-3145-02). Wavelength: CWDM4 (1271, 1291, 1311, 1331 nm). 1 × Cisco QSFP-100G-CWDM4-S Transceiver. Manufacturer: Cisco.
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