Great adapter for a server machine, or in my case, a PFSense router build.

A quick tip (this card uses 4 Realtek NIC chips): test the card in a test bench PC with the latest version of whatever OS you are using. in my case, my test bench PC running Windows 10 1709 detects the card immediately and it works as advertised. all 4 ports connect at Gigabit speeds, provided you also have a Gigabit Ethernet Switch.

As for recommendations, if you need a cheap multi-port network card for a server machine, router build, or some other application, I give this card a 5 out of 5 based on my experience with this $40 card.

I plugged this NIC into my computer with plans of using it with my Hyper-V installation on Windows 10. I set up the VSwitch and connected a VM and could tell right away that something wasn't right. I would ping my router and get 75% packet loss. I downloaded the latest drivers, deleted everything and set it up again. It was having the same issue. Pulled the card, set up a basic network with a router, managed switch and no Hyper V. Even a new network cable. I couldn't even connect to the management interface on the managed switch that it was physically plugged into and a ping was resulting in that same 75-80% no response rate. I tried to return it but Amazon presented an error that the item can't be returned. There was an option to contact a customer service rep which I did. I explained that the site won't let me return the product but it is defective. They said it was non-returnable but they would refund my purchase. I have had it for less than a week so well within the 30 days.

Just skip this one and get an Intel NIC or something else. It might have been $10 cheaper but I have spend several hours messing around with this and 10 min of my time fighting a ridiculous issue isn't worth the $10 I saved.

In my home setup, I have my server and my main machine. I utilized the onboard gigabit nic and the two additional in the server. Definitely was nice being able to copy game files to two machines, plus moving other data at the same time to my main machine. roughly 2500Mb used and still 500Mb to spare, so the servers didn't get choked!

Popped into my old Dell server, installed drivers and we're up and running with two extra gigE ports. Running under Windows 7.

Have several VMs sharing this card via VMware Player without issue.

Haven't speed tested it, but I've got it watching a port mirror on my router which sees ALL of my LAN traffic and it's keeping up just fine, so for even causal networking chores I suspect it's just fine.

This is card is working great. User error during setup. running with NAs4Free in LACP mode. Tested with pfsense and getting max throughput.