Your search for "ONS-SC+-10G-ER" revealed the following:

Cisco ONS-SC+-10G-ER 10GB BASE-ER 1550nm SMF LC SFP+ Transceiver

SKU: NSH-7582
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco ONS-SC+-10G-ER 10GB BASE-ER 1550nm SMF LC SFP+ Transceiver

SKU: NSN-2778
Condition: New
Shipping: Overnight Options
Warranty: 365 days