Your search for "hpe sfp28" revealed the following:
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
NEW HPE Aruba JL489A 5m 25GB SFP28 Direct Attach Copper Twinax Cable
SKU: NSN-6555
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW HPE JH390A FlexFabric 5940 Series 48x 10GB SFP+ 6x 100GB QSFP28 Switch
SKU: NSN-9323
Condition: New
Shipping: Overnight Options
Warranty: 365 days
HPE Q6M29A SN2410bM 48x SFP+ (24x Active) 8x QSFP28 (4x Active) SAN Switch
SKU: NSB-6903
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
HPE JL722C Aruba CX 8360 v2 Series 24x 10GB SFP+ 2x 100GB QSFP28 Switch
SKU: NSB-3811
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW HPE Q2F24A SN2100M 8x 100 Gigabit QSFP28 Back-to-Front Airflow Switch
SKU: NSN-2448
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Proline SFP-H25G-CU2M-PRO 2m 25GB SFP28 Direct Attach Copper Cable
SKU: NSB-1080
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW HPE JQ075A FlexFabric 5945 Series 16x 100 Gigabit QSFP28 Switch
SKU: NSN-3668
Condition: New
Shipping: Overnight Options
Warranty: 365 days