Your search for "hpe sfp28" revealed the following:

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

SKU: NSB-9752
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme Brocade BR-SLX-9140-48V-AC-F 48x 25GB SFP28 6x QSFP28 F-B Air Switch

SKU: NSN-3852
Condition: New
Shipping: Overnight Options
Warranty: 365 days

HPE Aruba JL310A 100GB BASE-LR4 LC Long Reach SMF QSFP-100G Transceiver

SKU: NSB-5547
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW HPE JG325B 40GB BASE-SR4 850nm MPO QSFP+ Transceiver

SKU: NSN-7207
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Nvidia Mellanox MSN2410-BB2F 48x 10GB SFP28 8x QSFP28 B-F Air Onyx Switch

SKU: NSN-9264
Condition: New
Shipping: Overnight Options
Warranty: 365 days

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

SKU: NSB-5319
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper EX4650-48Y-DC-AFO 48x 25GB SFP28 8x 100GB QSFP28 F-B Airflow Switch

SKU: NSN-3467
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Extreme 7520-48YE-8CE-AC-F 48x 25GB SFP28 8x 100GB QSFP28 F-B Air MACsec Switch

SKU: NSB-9982
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Ruckus ICX7850-48F ICX 7850 Series 48x 25GB SFP28 8x 100GB QSFP28 Switch

SKU: NSN-8061
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme 5420M-24T-4YE 5420 Series 24x 1GB RJ45 4x 25GB SFP28 Switch

SKU: NSN-8579
Condition: New
Shipping: Overnight Options
Warranty: 365 days