StarTech.comPCI Express Gigabit Ethernet Fiber Network Card w/ Open SFP - PCIe GbE SFP Network Card Adapter NIC - Fiber Optic SFP Adapter (PEX1000SFP2), Gigabit Ethernet (1000 Mbps)

There's no technical details on the description apart from the marketing blurb. That chipset is reported as buggy as early as 2012 with pretty much every version of Linux available. You can some traffic so it might appear it 'works' however as soon as you load the traffic the driver crashes. Same behaviour with both the Linux driver and the manufacturer's driver. This was a waste of time and money.

diddn,t work in our server but thats was our fault

great service exactly as described

Installed the network card in a sinnet tech SE II thunderbolt adapter, downloaded the akitio thunder bolt 10 gbit network drivers installed these on my apple osx 10.10 and presto a 10 gbit network connection for less than 500 pounds!

Not as cheap as I'd like but works perfectly.

When limited for PCIe slots on the Mother board this can solve the problem and it works perfectly, great price too

Software supplied did not do spanning. Had to download from realtek. That software promptly crashedwhen attempting to span and now only one port shows up which is non-functional. Not a happy customer.