Ethernet Svr Adapter X520-DA2

Fast network card. Love the speed! Reliability has been good so far.

Working like a champ. This card is supported by both XenServer and FreeNAS and we are using it in production for both.

Added to my sinology RS 1221 RP. Made 10 Gb of reality

The Card did not come with a short bracket.

Great NIC...when it works. Recent purchased from multiple vendors is currently at a 30% success rate. Yes 2/3 of my recently purchased X250-DA2 NICs have been defective out of the box. Issues include high pitched ringing with connection drop outs and dead SFP+ ports. Not sure what is going on with Intel, normally they are very good quality. These NICs are clearly from different batches too (different PCB layouts even, clearly not made at the same time).Other than getting functional devices, these NICs are great. They work out of the box in Linux and ESXI and the Windows drivers are easy to find and install.

Great product and fast shipping.

It is not compatible with my mainboard Gigabyte GA-Z87X-U5H. But it can function properly on the other Asus mainboard. I have to buy another Broadcom 10G card finally.

Works great but you must either use INTEL's optics OR disable authentic SFP verification when loading the kernel module under Linux.