Your search for "qsfp-100g-cwdm4" revealed the following:
NEW Cisco QSFP-100G-CWDM4-S 100GB BASE-CWDM4 1331nm LC SMF QSFP+ Transceiver
SKU: NSN-2027
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 75.99
• 22 in stock
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Cisco QSFP-100G-CWDM4-S 100GB BASE-CWDM4 1331nm LC SMF QSFP+ Transceiver
SKU: NSH-8876
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 19.99
• Only 1 remaining
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Arista QSFP-100G-CWDM4 100GB BASE-CWDM4 SMF QSFP28 Transceiver
SKU: NSB-5283
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 51.99
• Only 2 remaining
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Cisco QSFP-100G-SM-SR 100GB BASE-CWDM4 1331nm Lite SMF QSFP28 Transceiver
SKU: NSH-8885
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 33.99
• Only 2 remaining
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HPE R1N46A 100GB BASE-CWDM4 LC Optical QSFP-100G Transceiver
SKU: NSB-5603
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 159.99
• 32 in stock
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Cisco QDD-2X100-CWDM4-S 200GB BASE-CWDM4 SMF 2km CS DOM QSFP-DD Transceiver
SKU: NSB-2435
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,088.99
• Only 2 remaining
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Arista QSFP-100G-FR 100GBASE-FR Single Lambda 1310nm 2km SMF QSFP28 Transceiver
SKU: NSB-5287
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 112.99
• 95 in stock
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NEW Arista QSFP-100G-CWDM4 100GB BASE-CWDM4 SMF Optical QSFP28 Transceiver
SKU: NSN-5677
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper JNP-QSFP-100G-CWDM 100GB BASE-CWDM4 1330nm SMF QSFP28 Transceiver
SKU: NSH-9974
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper JNP-QSFP-100G-CWDM 100GB BASE-CWDM4 SMF QSFP28 Transceiver
SKU: NSN-4927
Condition: New
Shipping: Overnight Options
Warranty: 365 days