Your search for "N6004X-M20UP" revealed the following:
Cisco N6004X-M20UP Nexus 6000 Series 20x 10GB SFP+ Switch Module
SKU: NSH-2582
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 162.99
• Only 2 remaining
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NEW Cisco N6004X-M20UP Nexus 6000 Series 20x 10GB SFP+ Switch Module
SKU: NSN-4075
Condition: New
Shipping: Overnight Options
Warranty: 365 days