Your search for "hpe sfp28" revealed the following:

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

NEW Cisco N9K-C93180YC-EX-24 24x 25GB SFP28 6x 100GB QSFP28 B-F Airflow Switch

SKU: NSN-0453
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista CAB-S-S-25G-2M 2m 25GB SFP28 Direct Attach Copper Cable

SKU: NSN-1211
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme 16566 210-12t-GE2 12x 1GB RJ45 2x 1GB SFP Switch

SKU: NSN-5126
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco N9K-C93180YC-EX-24 24x 25GB SFP28 6x 100GB QSFP28 F-B Airflow Switch

SKU: NSB-7728
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Juniper QFX5200-48Y-DC-AFO 48x 25GB SFP28 6x 100GB QSFP28 F-B Air (DC) Switch

SKU: NSH-8259
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Nvidia Mellanox MSN2010-CB2FC 18x 25GB SFP28 4x QSFP28 B-F Cumulus Linux Switch

SKU: NSB-6775
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Arista CAB-S-S-25G-5M 5m 25 Gigabit BASE-CR Twinax Copper Cable

SKU: NSN-7295
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Ruckus ICX8200-48PF ICX 8200 Series 48x 1GB PoE+ RJ45 4x 25GB SFP28 Switch

SKU: NSB-9719
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Extreme 16701 X460-G2-24t-10GE4 28x 1GB RJ45 8x 1GB Combo 4x 10GB SFP+ Switch

SKU: NSH-8484
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days