For multiple listed items, the pictured serial number, date or country of manufacture is not necessarily the one that will be sent. Product Details, Specifications, overview, etc. No return is allowed unless defects are reported with the item. We don't allow return for incompatibility, "changed my mind", or misunderstanding caused by unclear description.We are trying our best to describe. Items clearly by demonstrating pictures and using information provided by manufacturers or other online resources. You should report any defects. We post feedback for all buyers who have posted feedback for us. Our customers are important to us, if you have any questions about our product please send us a message and we will be happy to assist you in the best way possible! The item "Mellanox MCX4131A-GCAT ConnectX-4 LX 50GbE PCIe PCI-E NIC Adapter Card NICE UNIT" is in sale since Friday, September 24, 2021. This item is in the category "Computers/Tablets & Networking\Computer Components & Parts\Interface/Add-On Cards\Network Cards". The seller is "potential-electronics" and is located in Morgan Hill, California. This item can be shipped worldwide.