Your search for "MCX414A-BCAT" revealed the following:
Mellanox MCX414A-BCAT ConnectX-4 2x 40/56GB QSFP28 PCIe3.0 x8 Card
SKU: NSB-2882
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 244.99
• Only 2 remaining
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NEW Mellanox MCX414A-BCAT ConnectX-4 2x 40/56GB QSFP28 PCIe3.0 x8 Card
SKU: NSN-1120
Condition: New
Shipping: Overnight Options
Warranty: 365 days