Your search for "5520-vim-4ye" revealed the following:
NEW Extreme 5520-VIM-4YE 5520 Series 4x 25GB SFP28 Switch Module
SKU: NSN-1956
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,879.99
• Only 2 remaining
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Extreme 5520-VIM-4YE 5520 Series 4x 25GB SFP28 Switch Module
SKU: NSB-3804
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,856.99
• Only 2 remaining
Call if you need more