Your search for "MCX4111A-ACAT" revealed the following:
nVidia Mellanox MCX4111A-ACAT 1x 25 Gigabit SFP28 PCIe3.0 x8 NIC
SKU: NSB-8598
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 56.99
• 47 in stock
Call if you need more
NEW nVidia Mellanox MCX4111A-ACAT 1x 25 Gigabit SFP28 PCIe3.0 x8 NIC
SKU: NSN-1162
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 213.99
• Only 2 remaining
Call if you need more