All of my network cables have been from monoprice. However the last batch I got, only one cable was able to transmit over 8mb/s. I'm no networking expert but the way I tested them was hooked up my laptop to my gigabit router and transferred a 4gb file to my Unraid server. If results were slow, I'd flip the ends, reboot and repeat. Only one cable gave me ~50mb/s the rest were in the 2-8mb/s range. All signs point to the cables unless there may be something I may have overlooked. The funny thing is, I have a few older monoprice cat6 cables and they work great. However I don't want to take another gamble, so if anybody has any other suggestions for cables and where to get them, I would appreciate it.