Your search for "VIM5-4X" revealed the following:
Extreme VIM5-4X VSP 4900 Series 4x 10GB SFP+ Switch Module
SKU: NSB-4650
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 244.99
• Only 1 remaining
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NEW Extreme VIM5-4X VSP 4900 Series 4x 10GB SFP+ Switch Module
SKU: NSN-4586
Condition: New
Shipping: Overnight Options
Warranty: 365 days