Your search for "WTRD1" revealed the following:
Dell WTRD1 SFP-10G-SR 10GB BASE-SR 850nm Short Reach MMF SFP+ Transceiver
SKU: NSH-5075
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 12.99
• 8 in stock
Call if you need more
Dell WTRD1 SFP-10G-SR 10GB BASE-SR 850nm Short Reach MMF SFP+ Transceiver
SKU: NSH-6095
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 12.99
• 8 in stock
Call if you need more