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)

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

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.

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.

Works great and provides 10GB speeds in my home lab

Bought this and installed it into a Dell R720 running Proxmox. It froze the system within a day, caused it to fail to boot with PCI-e errors. I pulled the card and reseated it, got it to boot. Then it was flooding dmesg with uncorrectable PCI-e errors and causing network instability even on the built-in network card. Pulled it a second time and the card was HOT to the touch with only having been in the system that time for... Maybe... 5 minutes tops. Like, I was worried it might melt the plastic package it was in within the box when I packed it back up hot. Requested a replacement, I'll update my review of the next one performs... I'd say "better" but "at all" is likely more accurate. *Update* Received the replacement with 2 day shipping (the original was overnight) and it seems to be working fine for the past week or so. The vendor did contact me to offer a refund, which was nice but I didn't take it since I have a working product now. I'm updating to 4 stars based on that. I won't give 5 though as if there was better QA, I would've had the working product overnight (as advertised) from when I ordered it, not 4-5 days later with the hassle of also having to return a bad one.

Great NIC with a solid chipset that are fast,reliable and well supported. Note that Windows 11 does not natively support this NIC, so visit Intel and get the driver and keep it handy. It was plug and play with TrueNas Scale. I've since got other products from 10Gtek, they make great stuff. Highly recommend.

I’ve had marginal experiences with 10Gtek in the past, and unfortunately this card tracked with that also. The 82599EN chipset is well-known, long supported in Linux, and the layout is very similar to the reference designs. The surface mount components all look good. However, I happened to notice that on mine, about half the pins on the SFP+ cage weren’t soldered. Note that they weren’t dubious or cold joints; they weren’t soldered at all. I took a fine-tipped iron and soldered them myself, and my card worked just fine afterwards. (Picture attached: the slightly less perfect and shiny connectors are mine, since I was out of flux.) After that unfortunate but necessary diversion, the card went into a fileserver which fired right up (rock-solid `ixgbe` driver in Linux). I’ve had no issues whatsoever. 10Gtek makes cost-effective, reference-design cards, but their QA is really questionable. Inspect your cards before installation, or you may regret it.

Worked great for upgrading my NAS. TrueNAS saw it right away and now I've got no bandwidth issues anymore sharing with the rest of the house!

La tarjeta funciona perfectamente a 10 Gb

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