Your search for "qsfp" revealed the following:
Juniper QFX5120-48T-AFO 48x 10G RJ45 6x 100GB QSFP28 F-B Airflow Switch
SKU: NSB-4852
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 14,062.99
• Only 1 remaining
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Arista DCS-7280SR2A-48YC6-F 48x 25GB SFP25 6x 100GB QSFP100 F-B Air Switch
SKU: NSH-9660
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,644.99
• Only 1 remaining
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Dell S5148F-ON-RA 210-ANCL 48x 25GB SFP28 6x 100GB QSFP28 B-F Air No OS10 Switch
SKU: NSB-6551
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,855.99
• Only 2 remaining
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Cisco N9K-X9432C-S Nexus 9500 Series 32x 100GB QSFP28 Switch Line Card
SKU: NSB-7708
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 294.99
• 9 in stock
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Extreme Brocade BR-SLX9850-100GX36CQ-M 36x 100G QSFP28 Router Line Card
SKU: NSB-5857
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,739.99
• Only 1 remaining
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HPE Aruba JL625A 48x 25GB SFP28 8x 100GB QSFP28 Back-to-Front Airflow Switch
SKU: NSH-8267
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 13,125.99
• Only 2 remaining
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NEW Mellanox MQM8520-H CS8500 Series 40x 200GB QSFP56 Spine Switch Blade
SKU: NSN-4766
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 5,462.99
• 5 in stock
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Cisco N3K-C36180YC-R 48x 25GB SFP28 6x 100GB QSFP28 B-F Airflow (AC) Switch
SKU: NSH-8367
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 5,619.99
• Only 1 remaining
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Dell Z9100-ON EMC Z-Series 32x 100GB QSFP28 F-B Airflow (No OS10) Switch
SKU: NSB-9749
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,262.99
• Only 2 remaining
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Arista DCS-7280SR2K-48C6-M-R 24x 10G 24x 25G 6x 100G QSFP SSD R-F Switch Router
SKU: NSB-5393
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 14,057.99
• 4 in stock
Call if you need more