Your search for "qsfp" revealed the following:
Juniper QFX5100-48S-DC-AFI 48x 10GB SFP+ 6x 40GB QSFP+ B-F Air (DC) Switch
SKU: NSH-8206
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 679.99
• Only 2 remaining
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NEW Fortinet FS-524D 24x 1GB RJ45 4x SFP+ 2x QSFP+ Local Management Only Switch
SKU: NSN-8452
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 2,344.99
• Only 1 remaining
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Cisco N9K-C9372TX-E 48x 10GB Copper 6x 40GB QSFP+ Back-to-Front Airflow Switch
SKU: NSB-4718
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 429.99
• 7 in stock
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Cisco N9K-C93600CD-GX 28x 100GB QSFP28 8x 400GB QSFP-DD B-F Airflow Switch
SKU: NSB-2134
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 12,075.99
• Only 1 remaining
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Nvidia Mellanox MC2210411-SR4 40GB BASE-SR4 850nm QSFP+ Transceiver
SKU: NSB-3098
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 59.99
• Only 2 remaining
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Extreme 16710 X460-G2 VIM-2q 2x 40GB QSFP+ Switch Module
SKU: NSH-9505
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 152.99
• Only 2 remaining
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NEW Cisco C9500-24Q-E Catalyst 9500 Series 24x 40GB QSFP+ F-B Airflow Switch
SKU: NSN-3658
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,879.99
• Only 1 remaining
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Cisco N9K-C9372PX 48x 10GB SFP+ 6x 40GB QSFP+ Front-to-Back Airflow Switch
SKU: NSH-7606
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 225.99
• Only 2 remaining
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Cisco C9500-16X-2Q-A 16x 10GB SFP+ 2x 40GB QSFP+ (via NM) NW Adv Switch
SKU: NSC-0308
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,895.99
• Only 1 remaining
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Dell 407-BBTD 0NYND EMC S6100-ON 16x 40GB QSFP+ Switch Module
SKU: NSB-6559
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 69.99
• 41 in stock
Call if you need more