Your search for "hpe sfp28" revealed the following:
NEW Arista CAB-Q-4S-100G-1M 1m 100GB QSFP to 4x 25GB SFP28 DA Breakout Cable
SKU: NSN-7153
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper EX4650-48Y-DC-AFO 48x 25GB SFP28 8x 100GB QSFP28 F-B Airflow Switch
SKU: NSH-8962
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco N9K-C93180YC-EX-24 24x 25GB SFP28 6x 100GB QSFP28 F-B Airflow Switch
SKU: NSN-0607
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper QFX5200-48Y-DC-AFI 48x 25GB SFP28 6x 100GB QSFP28 B-F Air DC Switch
SKU: NSN-3633
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper QFX5120-48Y-DC-AFO 48x 25GB SFP28 8x 100GB QSFP28 F-B Air (DC) Switch
SKU: NSH-8251
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper EX4650-48Y-DC-AFI 48x 25GB SFP28 8x 100GB QSFP28 B-F Airflow
SKU: NSH-8961
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Ruckus ICX7850-48F-E2 48x 25GB SFP28 8x 100GB QSFP28 Switch
SKU: NSN-7019
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper QFX5200-48Y-DC-AFO 48x 25GB SFP28 6x 100GB QSFP28 F-B Air (DC) Switch
SKU: NSH-8259
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Dell S5224F-ON-RA 24x 25GB SFP28 4x 100GB QSFP28 B-F Air OS10 Switch
SKU: NSB-6588
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper QFX5200-48Y-DC-AFI 48x 25GB SFP28 6x 100GB QSFP28 B-F Air (DC) Switch
SKU: NSH-8258
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days