Your search for "x690-48t-2q-4c" revealed the following:
Extreme 17360 X690-48t-2q-4c 48x 10GB Copper 2x 40GB QSFP+ 4x QSFP28 Switch
SKU: NSB-4639
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Extreme 17360 X690-48t-2q-4c 48x 10GE 2x 40G QSFP+ 4x 100G QSFP28 Switch
SKU: NSN-5020
Condition: New
Shipping: Overnight Options
Warranty: 365 days