Your search for "hpe sfp28" revealed the following:
Cisco N9K-C92160YC-X 48x 25GB SFP28 6x 40GB QSFP+ Front-to-Back Airflow Switch
SKU: NSB-6905
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 508.99
• Only 1 remaining
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NEW HPE Aruba JL309A 100GB BASE-SR4 MPO MMF Optical QSFP28 Transceiver
SKU: NSN-6161
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 349.99
• Only 2 remaining
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HPE P00928-B21 DDR4-2933 CAS-24-21-21 3DS 128GB Octal Rank x4 Memory
SKU: NSB-4750
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,972.99
• Only 2 remaining
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Juniper JNP-SFP-25G-SR 25GB BASE-SR 850nm MMF LC SFP28 Transceiver
SKU: NSH-9720
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 179.99
• Only 2 remaining
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NEW Cisco QSFP-4SFP25G-CU3M 3m 1x 100GB QSFP28 to 4x 25GB SFP28 Breakout Cable
SKU: NSN-1831
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 449.99
• Only 2 remaining
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Cisco QSFP-4SFP25G-CU3M 3m 1x 100GB QSFP28 to 4x 25GB SFP28 Breakout Cable
SKU: NSH-8879
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 105.99
• Only 2 remaining
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Cisco C9200-NM-2Y Catalyst 9200 2x 25GB SFP28 Switch Module
SKU: NSB-9202
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 366.99
• 6 in stock
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Cisco SFP-H25G-CU5M 5m 25GB SFP28 Direct Attach Copper Twinax Cable
SKU: NSH-8893
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 239.99
• 5 in stock
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Cisco N9K-C93180YC-FX 48x 25GB SFP28 6x 100GB QSFP28 MACsec B-F Airflow Switch
SKU: NSH-6790
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,052.99
• Only 2 remaining
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NEW Cisco QSFP-4SFP25G-CU1M 1m 1x 100GB QSFP28 to 4x 25GB SFP28 Breakout Cable
SKU: NSN-1832
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 412.99
• 6 in stock
Call if you need more