It's an OEM card with a genuine i40evf Intel chipset. So it's a XL710-QDA2. Highly recomended for 2x40gbps. It worked out of the box on linux, but be aware that it only accepts Intel transceivers or validated transceivers. There's no way to get a link up with a unsupported SPF and there's no way to load the module with arguments to do so. Everything from FANMI is genuíne, so if you have a validated SPF or a validated twinax cable you can't go wrong. Buy it.