Your search for "HPE SFP28" revealed the following:
HPE Aruba JL814A Instant On 1830 48x 1GB RJ45 4x 1GB SFP Switch
SKU: NSB-9251
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 202.99
• Only 2 remaining
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NEW HPE Aruba JL724A CX 6200F Series 24x 1GB RJ45 4x 10GB SFP+ Switch
SKU: NSN-9685
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 2,697.99
• Only 2 remaining
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NEW HPE J9263A 6600 Series 6600-24G 24x GE RJ45 4x 1G Combo Switch
SKU: NSN-2889
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,469.99
• Only 1 remaining
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Ruckus ICX8200-C08ZP ICX 8200 8x MultiGB PoE++ RJ-45 2x 25GB SFP28 Switch
SKU: NSB-9709
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,308.99
• Only 2 remaining
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Extreme EC8404009-E6 VSP 8400 Series 8402CQ 2x 100GB QSFP28 Switch Module
SKU: NSH-8563
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 4,382.99
• Only 1 remaining
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HPE Aruba J9281B 1m 10GB SFP+ Direct Attach Copper Cable
SKU: NSH-6443
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 192.99
• Only 2 remaining
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HPE Aruba JL628A CX 8325 Series Front-to-Back Airflow Switch Fan
SKU: NSH-9537
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 817.99
• Only 2 remaining
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HPE Aruba JL806A Instant On 24x 1GB RJ45 2x 10GB SFP+ 2x 10GB RJ45 Switch
SKU: NSB-9255
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 722.99
• Only 2 remaining
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Arista DCS-7050SX3-48YC8-F 48x 25GB SFP28 8x 100GB QSFP F-B Airflow Switch
SKU: NSH-8183
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 3,485.99
• Only 2 remaining
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NEW HPE Aruba JL726A CX 6200F Series 48x 1GB RJ45 4x 10GB SFP+ Switch
SKU: NSN-0172
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 2,697.99
• Only 2 remaining
Call if you need more