Your search for "hpe sfp28" revealed the following:
Fortinet FS-1024E FortiSwitch 24x SFP+ 2x QSFP28 Registrable / Unclaimed Switch
SKU: NSC-0186
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX5200-48Y-DC-AFO 48x 25GB SFP28 6x 100GB QSFP28 F-B Air DC Switch
SKU: NSN-3634
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Nvidia Mellanox MSN3420-CB2FC 48x 25GB SFP28 12x 100GB QSFP28 B-F CL Switch
SKU: NSN-0686
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW HPE Aruba JL579A 8320 Series 32x 40GB QSFP+ Switch
SKU: NSN-3643
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Ruckus ICX7850-48F ICX 7850 Series 48x 25GB SFP28 8x 100GB QSFP28 Switch
SKU: NSB-6344
Condition: Seller refurbished
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
NEW HPE 781577-001 SAS SC ENT 781516-B21 600GB 12G 10K 2.5 Inch Hard Drive
SKU: NSN-0958
Condition: New
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 Extreme 16566 210-12t-GE2 12x 1GB RJ45 2x 1GB SFP Switch
SKU: NSN-5126
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper JNP-SFP-25G-LR 25GB BASE-SR 1310nm SMF LC SFP Transceiver
SKU: NSB-5056
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days