Your search for "ec8404002-e6" revealed the following:
Extreme EC8404002-E6 VSP 8400 Series 8424XT 24x 10GE Copper Switch Module
SKU: NSH-9454
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 5,624.99
• Only 1 remaining
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NEW Extreme EC8404002-E6 VSP 8400 Series 8424XT 24x 10GE Copper Switch Module
SKU: NSN-4998
Condition: New
Shipping: Overnight Options
Warranty: 365 days