Customer is responsible for returning the faulty unit back to us. If any changes have been made to the unit, we will reject the return. If you are not sure about anything, please do not assume but ask us.If you are not satisfied, please let us know so that we may resolve the issue. The item "DELL Intel X520-DA2 Network Card Dual Port 10GB BASE-X PCIe 942V6 1YrWty TaxInv" is in sale since Tuesday, September 29, 2020. This item is in the category "Computers/Tablets & Networking\Enterprise Networking, Servers\Switches & Hubs\Other Ent. The seller is "ccnxlabs-2" and is located in Ultimo, NSW. This item can be shipped worldwide.