Your search for "hpe xfp to sfp" revealed the following:
HPE AJ718A 8GB Fibre Channel 850nm 850nm MMF 150m DOM SFP+ Transceiver
SKU: NSB-0464
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 12.99
• 137 in stock
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HPE JD494A 1GB BASE-LX 1300nm 1300nm LC SFP Transceiver
SKU: NSB-5673
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 105.99
• Only 2 remaining
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NEW HPE Aruba JL083A 4x 10GB SFP+ MACsec Switch Module for 3810 and 2930M
SKU: NSN-5071
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 979.99
• Only 2 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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NEW HPE JL823A FlexNetwork 5140 EI Series 24x 1GB PoE+ RJ45 2x 10GB SFP+ Switch
SKU: NSN-0743
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 2,761.99
• Only 2 remaining
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NEW HPE JL437A 10GB BASE-SR 850nm Short Reach LC SFP+ Transceiver
SKU: NSN-5221
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 58.99
• Only 2 remaining
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HPE Aruba J9151E 10GB BASE-LC 1310nm Long Reach SMF LC SFP+ Transceiver
SKU: NSB-5535
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 355.99
• 13 in stock
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HPE Aruba JL083A 4x 10GB SFP+ MACsec Switch Module for 3810 and 2930M
SKU: NSH-6683
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 107.99
• 9 in stock
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HPE JL437A 10GB BASE-SR LC Data Center Short Reach SFP+ Transceiver
SKU: NSB-5113
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 54.99
• Only 2 remaining
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HPE Aruba J9283D 3m 10GB SFP+ Direct Attach Copper Cable
SKU: NSH-9648
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 67.99
• 7 in stock
Call if you need more