Your search for "HPE SFP28" revealed the following:
HPE Aruba J9992A 5400R zl2 20x 1GB PoE+ RJ45 1x 40GB QSFP+ MACsec v3 Module
SKU: NSB-0433
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 452.99
• 9 in stock
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NEW HPE Aruba JL325A 2930M Series 2x Stacking Port Switch Module
SKU: NSN-3262
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 228.99
• Only 2 remaining
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NEW HPE Aruba AP25 R9B27A US Wi-Fi 6 802.11ax Internal Antenna Indoor WAP
SKU: NSN-0878
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 268.99
• Only 2 remaining
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NEW HPE Aruba JW679A 7010 (US) 16x 1GB PoE+ RJ45 Controller for 32x AP's
SKU: NSN-9232
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 287.99
• Only 2 remaining
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HPE Aruba J9995A 5400R zl2 8x 10GB PoE+ Copper MACsec v3 Switch Module
SKU: NSH-5901
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 465.99
• 45 in stock
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HPE Aruba JL071A 3810 Series 24x 1GB RJ45 1x Expansion Module Slot Switch
SKU: NSH-5951
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 188.99
• Only 2 remaining
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HPE Aruba JL805A Instant On 12x 10GB RJ45 4x 10GB SFP+ Switch
SKU: NSB-9254
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 852.99
• Only 1 remaining
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HPE Aruba JL670A CX 6300M Series X372 1600W AC Switch Power Supply
SKU: NSB-7010
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 484.99
• Only 2 remaining
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HPE Aruba JL074A 3810 Series 48x 1GB PoE+ RJ45 1x Expansion Module Slot Switch
SKU: NSH-6413
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 157.99
• 21 in stock
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NEW HPE JH172A 8x E1/Fractional E1/T1/Fractional T1 Router Module
SKU: NSN-4628
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,224.99
• Only 2 remaining
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