Your search for "SFP-10/25G-CSR-S" revealed the following:
NEW Cisco SFP-10/25G-CSR-S 25GB BASE-CSR 850nm Short Reach MMF SFP28 Transceiver
SKU: NSN-0704
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 204.99
• 99 in stock
Call if you need more
Cisco SFP-10/25G-CSR-S 25GB BASE-CSR 850nm Short Reach MMF SFP28 Transceiver
SKU: NSB-6673
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 196.99
• 99 in stock
Call if you need more