Review on TRENDnet 10G SFP+ PCIe Network Adapter, PCIe Slot to 10 Gigabit SFP+ Converter, Supports 802.1Q, Standard & Low-Profile Brackets, Windows & Linux Compatible, Black, TEG-10GECSFP by Gabriel Day

I bought these to use in a few Linux boxes and was disappointed to find that the driver wasn't actually in the kernel tree. There is an external driver, but it corrupts the kernel (tn40xx: loading a module outside of the tree corrupts the kernel). Doesn't seem to matter to me, I'd rather not use them. I'm going to replace them with some Mellanox cards. For reference, the card reports itself as an Ethernet adapter from Tehuti Networks Ltd. TN9310 10GbE SFP+ with PCI ID 1fc9:4022.