Your search for "hpe sfp28" revealed the following:

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HPE P26264-001 Broadcom 2x 25 Gigabit SFP28 Network Adapter

SKU: NSC-0349
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW HPE Q9E63A M-Series SN2010M 18x 25GB SFP28 4x 100GB QSFP28 B-F Air Switch

SKU: NSN-0072
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW HPE Aruba JL704C 44x 25GB SFP28 6x 100GB QSFP28 F-B Airflow Switch w/ MACsec

SKU: NSN-2050
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW HPE Aruba JL624A 48x 25GB SFP28 8x 100GB QSFP28 Front-to-Back Airflow Switch

SKU: NSN-3639
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW HPE Aruba JL625A 48x 25GB SFP28 8x 100GB QSFP28 Back-to-Front Airflow Switch

SKU: NSN-3640
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW HPE Aruba JL484A 25GB BASE-SR LC MMF Optical SFP28 Transceiver

SKU: NSN-5895
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW HPE Aruba R0X44A CX 6400 Series 48x 25GB SFP28 Switch Line Card

SKU: NSN-0523
Condition: New
Shipping: Overnight Options
Warranty: 365 days

HPE Aruba JL705C 44x 25GB SFP28 6x 100GB QSFP28 B-F Air Switch w/ MACsec

SKU: NSB-9696
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

HPE Aruba JL704C 44x 25GB SFP28 6x 100GB QSFP28 F-B Airflow Switch w/ MACsec

SKU: NSB-9590
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW HPE Aruba JL486A 25GB BASE-LR LC Long Reach 1310nm SMF SFP28 Transceiver

SKU: NSN-6502
Condition: New
Shipping: Overnight Options
Warranty: 365 days