10Gb PCI-E NIC Network Card, Single SFP+ Port, with Intel 82599EN Controller, Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA1(E10G42BTDA)

My system already had 10Gb ethernet, but I disliked the heat from the translation between SFP+ and RJ46 so I got this so I could just use a DAC cable between my system and the switch. No issues installing, I just had to download the driver from Intel and install it manually, otherwise it worked pretty quickly without issues. Tested getting full 10-gig speeds through iperf3 no problem. 10Gtek seems to be establishing themselves well in the industry. Great cables, wonderful adapters, and now solid NICs to add to the list of items of theirs I've gotten and used. All work solid and as expected.

I bought 3 of these cards for a couple Synology NAS devices (DS 1618+ and DS 2419+) and my main computer, mainly for faster media transfers and an attempt to edit 4K footage direct from my NAS in real time. The price is significantly more expensive here than buying direct from 10GTek and having it ship from HK and used NICs are apparently very cheap if you look around. I installed the cards in my computer and the DS 1618+ to start with. It was a painless experience and the small form factor bracket was easy to switch on for the Synology. From a networking standpoint there are many ways you can go about it. I opted for a Mikrotik switch with 4 SFP+ ports, which made things a breeze. You can plug directly from one device into another if they both have a 10Gb NIC but you'll need to do some configuration with static IPs. With more than 2 10Gb devices you'll want to get a switch. In terms of cabling, I was only doing short distance networking (7 meters max) so I went for SFP+ DACs. You can also network with a transceiver and RJ45 if you have an existing CAT6 or newer setup, or a multimode fiber, which is good for longer distance networking. The Synology connected to the internet & LAN immediately upon being switched on - completely plug-and-play. My computer wasn't and I don't have a DVD drive so I had to try to find the drivers online. You can essentially treat this as an Intel NIC for most intents and purposes so I went to Intel's website and downloaded the Intel® Ethernet Adapter Complete Driver Pack. That was useful because it not only installed the drivers I needed to be able to connect but also gave me tools to test that the connections were working properly. I've only done one test so far but immediately saw 3-4x transfer speed improvements. Before I was seeing about 113MB/s, bottlenecked by a 1Gb connection. I saw high 300s MB/s during a file copy from my NAS to my SATA SSD, equating to about 3Gb speeds. Your bottleneck will now be the speed of an HDD array or SATA (6Gb). You can achieve even faster speeds with NVMe to NVMe transfers. Overall, definitely happy with this card so far. Seems to be completely plug-and-play for most people.

Great card so far. Works with either fiber sfps, 10G copper sfps or with DAC cables. One caveat with Windows 11: I had to find and install the older Intel x510 drivers for it to be recognized and work. Linux (Pop OS 22.04 LTS) had the drivers and libraries available natively. As far as stability and connectivity is concerned, zero issues so far. A quick Google search found an old Redfit article with a link to the driver pack, so 10 minute fix.

It works and works well with those SFP+ cables that are cheap from Amazon.

Works fine but the EEPROM is configured for 2 interfaces so the card allocates 8 PCIe lanes even though only 4 are needed.

I am in the process of getting 8gigabit fiber internet service. In anticipation of this, I have begun upgrading all my devices to support 10g. I had a bit of difficulty installing this card, but in the end got it to work. First, I had to find the correct drivers as Windows 11 did NOT install the drivers automatically. You will want to make sure to download the "Intel Ethernet Adapter COMPLETE Driver Pack" from Intel's website. Once downloaded, extract and install via the setup executable. Second, I was getting intermittent packet loss utilizing fiber optic sfp+ to a Mikrotik CRS305 switch in SwOS mode. I ended up fixing this issue by 1) upgrading BIOS on motherboard of host PC and 2) upgrading firmware of Mikrotik switch. I still continued having intermittent packet loss after this with the fiber optic coming from my first Mikrotik switch. My LAN architecture was cable modem (still waiting for fiber install) -> GE800 Linksys 10g router , then 10g from router's LAN port _> Mikrotik switch via rj45 Cat 6 cable. Then from mikrotik straight to PC via fiber. Once i installed a second Mikrotik, then routed PC through that second mikrotik router which was connected to the first mikrotik via fiber, all packet loss issues stopped. The PC is connected to the second switch via fiber SFP as well. Due to this, im guessing it was likely a setting either on the ethernet card driver or the first switch that was causing packet loss. regardless, it is working flawless now To summarize, it takes a bit of work and there is NOT a whole lot of detailed information out there. it will likely take you some trial and error but it is well worth the effort. It might shy away some people however. EDIT - forgot to mention, i had tried setting jumbo packet size through the windows driver settings, as well as turning on and off flow control with no effect, so it was definitely a setting with either the driver or the first switch.

Drivers for Windows 11 took an hour to find and required downloading the entire Intel network driver set just to get it installed. Constantly disconnects/reconnects every 5 seconds, so the driver is faulty. Worst of all even when connected via 40gb fiber to a machine across the room it didn't get over 1.2gbps. I'm assuming the Windows driver is at fault, and it may work fine on *nix, but this is just unacceptable. Intel needs to work with Microsoft to get the driver situation fixed so that end users don't have to deal with this kind of crap - it's not like we can troubleshoot things like we can on Linux. We have to endlessly read forums with unpaid volunteers telling us to run chkdsk over and over and over again. Replacing with NON-intel network devices. I'm looking forward to at some point never using Windows or any other Microsoft product ever again. Others who are using this device with Windows - server os or otherwise - verify your actual network throughput using iperf3.

Can confirm the device works properly with truenas no drivers needed for dragonfish. Does not work with windows at all with updated drivers even rolling back and trying older versions does not work properly intel has dropped support for this card and following guides for this exact NIC provided me better speeds on windows but still not 10gbps only at max 1.6gbps. I’ve been able to validate this card to 2.5gbps on true nas but not faster due to not having another 10gbps NIC. Support took 1-3 days to respond on each message and kept trying to tell me it was my network or my NIC on the other side even though my network and NIC have been validated at higher speeds then their card gives. Windows users should not buy this card, I haven’t tried it on ESXI but for personal use most users won’t need this if they are running 1-2 VMs. If you don’t mind hunting the driver down and having your old NIC no longer work then this card would be for you, but this card on windows gave me to much headache after swapping out around 15 different drivers and driver version on top of that. Keep in mind I am using windows 10. From reading this card may require version 25 of the intel network driver set but I haven’t gotten those to work, other have so your luck may vary. Hence 3/5 since I have gotten this to partially to work on other systems just not windows.

La tarjeta funciona perfectamente a 10 Gb

Excellent, plug and play in true nas and chineese x99 motherboard with xeon processor. Connected to udm.