Your search for "Juniper QSFP-40G" revealed the following:
HPE JG325B 40GB BASE-SR4 850nm MPO QSFP+ Transceiver
SKU: NSB-5664
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 22.99
• 99 in stock
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Juniper QFX5200-32C-AFI 32x 100GB QSFP28 Back-to-Front Airflow Switch
SKU: NSH-8252
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 3,449.99
• Only 2 remaining
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NEW Juniper EX4500-40F-FB-C 40x 10GB SFP+ Front-to-Back Airflow Switch
SKU: NSN-3478
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 612.99
• Only 1 remaining
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Juniper ACX5448-AC-AFO ACX Series 48x 10GB SFP+ 4x 100GB QSFP28 F-B Air Router
SKU: NSB-5801
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 15,182.99
• Only 2 remaining
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Juniper QFX5220-32CD-AFO 32x 400GB QSFP56-DD Front-to-Back Airflow Switch
SKU: NSB-7928
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 14,906.99
• Only 2 remaining
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Cisco WSP-Q40GLR4L 40GB BASE-LR4-Lite 1310nm SMF QSFP+ Transceiver
SKU: NSH-5570
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 19.99
• Only 2 remaining
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Cisco Meraki MA-CBL-40G-1M 1m 40GB QSFP+ Stacking Cable for MS350, MS410, MS425
SKU: NSB-0536
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 133.99
• Only 2 remaining
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HPE JG661A 40GB BASE-LR4 1310nm SMF LC QSFP+ Transceiver
SKU: NSB-5662
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 45.99
• 6 in stock
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NEW Juniper QFX5200-32C-AFI 32x 100GB QSFP28 Back-to-Front Airflow Switch
SKU: NSN-3356
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 3,525.99
• Only 1 remaining
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Arista DCS-7280QR-C36-R 24x 40GB QSFP+ 12x 100GB QSFP28 B-F Airflow Switch
SKU: NSH-7152
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,908.99
• 4 in stock
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