Your search for "mcx653106a-ecat" revealed the following:
nVidia Mellanox MCX653106A-ECAT 2x 100GB QSFP56 PCIe3.0/4.0 x16 NIC
SKU: NSB-9154
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 821.99
• 22 in stock
Call if you need more
NEW nVidia Mellanox MCX653106A-ECAT 2x 100GB QSFP56 PCIe3.0/4.0 x16 NIC
SKU: NSN-1134
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,164.99
• Only 2 remaining
Call if you need more