Your search for "10338" revealed the following:

NEW Extreme 10338 10GB BASE-T RJ45 Cat6a3 SFP+ Transceiver

SKU: NSN-6203
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Extreme 10338 10GB BASE-T RJ45 Cat6a3 SFP+ Transceiver

SKU: NSB-5737
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days