Your search for "SFP-10G-LR-X" revealed the following:
Cisco SFP-10G-LR-X 10GB BASE-LR Long Reach Multi Rate SMF SFP+ Transceiver
SKU: NSH-2243
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 82.99
• Only 2 remaining
Call if you need more
NEW Cisco SFP-10G-LR-X 10GB BASE-LR Long Reach Multi Rate SMF SFP+ Transceiver
SKU: NSN-5855
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 437.99
• 16 in stock
Call if you need more