Your search for "qsfp28" revealed the following:
Dell S5212F-ON-RA 12x 25GB SFP28 3x 100GB QSFP28 Back-to-Front Air OS10 Switch
SKU: NSB-0755
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 5,624.99
• Only 1 remaining
Call if you need more
Cisco QSFP-100G-CU2M 2m 100GB QSFP28 Direct Attach Copper Twinax Cable
SKU: NSH-8997
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 166.99
• Only 2 remaining
Call if you need more
Cisco QSFP-100G-AOC7M 7m 100GB QSFP28 Active Optical Cable
SKU: NSH-8883
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 112.99
• 9 in stock
Call if you need more
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
Call if you need more
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
Call if you need more
nVidia Mellanox MAM1Q00A-QSA28 100GB QSFP28 to 25GB SFP28 Ethernet Adapter
SKU: NSB-4536
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 97.99
• 14 in stock
Call if you need more
NEW Cisco N3K-C3264C-E 64x 100GB QSFP28 2x 1GB SFP Back-to-Front Airflow Switch
SKU: NSN-1843
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,169.99
• Only 2 remaining
Call if you need more
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
Call if you need more
Juniper QFX5120-48Y-AFI 48x 25GB SFP28 8x 100GB QSFP28 B-F Airflow Switch
SKU: NSH-8248
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 8,156.99
• Only 1 remaining
Call if you need more
Cisco N9K-C93180YC-FX3 48x 25GB SFP28 6x 100GB QSFP28 F-B Air Switch
SKU: NSB-3959
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 10,687.99
• Only 2 remaining
Call if you need more