Your search for "hpe sfp28" revealed the following:

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

SKU: NSN-3538
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista CAB-S-S-25G-3M 3m 25 Gigabit SFP28 Direct Attach Copper Cable

SKU: NSN-7304
Condition: New
Shipping: Overnight Options
Warranty: 365 days

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

SKU: NSB-8195
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Cisco UCS-IOM-2408 8x 25GB SFP28 (External) 32x 10GB (Internal) Fabric Extender

SKU: NSB-6841
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

HPE 862976-B21 DDR4-2400 CAS-17-17-17 Unbuffered 16GB Dual Rank x8 Memory

SKU: NSB-4744
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme 10521 3m 25 Gigabit SFP28 Direct Attach Twinax Cable

SKU: NSN-1711
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper EX4650-48Y-AFI 48x 25GB SFP28 8x 100GB QSFP28 B-F Air Switch

SKU: NSN-3465
Condition: New
Shipping: Overnight Options
Warranty: 365 days

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

SKU: NSH-8257
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

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