Your search for "QSFP28" revealed the following:

Ruckus ICX7550-24ZP 12x 2.5GB PoE+ RJ45 10GB PoE+ RJ45 2x 100GB QSFP28 Switch

SKU: NSB-7416
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Ruckus ICX7550-48ZP 36x 2.5GB PoE+ RJ45 12x 10GB Copper 2x QSFP28 Switch

SKU: NSN-0244
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7280TR-48C6-F 48x 10GB Copper 6x 100GB QSFP28 F-B Airflow Switch

SKU: NSN-9773
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco N540-24Z8Q2C-M 24x 10GB SFP+ 8x 25GB SFP28 2x 100GB QSFP28 Router

SKU: NSN-9652
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Nvidia Mellanox MSN3420-CB2FC 48x 25GB SFP28 12x 100GB QSFP28 B-F P2C CL Switch

SKU: NSB-1033
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Extreme 17360 X690-48t-2q-4c 48x 10GB Copper 2x 40GB QSFP+ 4x QSFP28 Switch

SKU: NSB-4639
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW EdgeCore 7712-32X-O-48V-F AS7712-32X 32x 100GB QSFP28 F-B Air (DC) Switch

SKU: NSN-8765
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Arista DCS-7280CR3K-32D4-F 32x 100GB QSFP28 4x 400GB QSFP-DD F-B Switch Router

SKU: NSB-5161
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Extreme EN-SLX-9030-48S-4C-AC-F 48x 10G SFP+ 4x 100G QSFP28 F-B Airflow Switch

SKU: NSH-8596
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7170-64C-F 7170 Series 64x 100GB QSFP28 F-R Airflow Switch

SKU: NSN-7014
Condition: New
Shipping: Overnight Options
Warranty: 365 days