I just bought a new Edimax EW-7833UAC USB wireless adapter and successfully configured it for my mid-2009 MacBook Pro. The reason I bought it is because the built-in wireless card inside my Mac is old and thus cannot use the AC speeds that my new 1Gbps modem is capable of. All my old Mac had come up with is 120 Mbps downloads.
When I connected the Edimax wireless adapter to my Mac, I was expecting it to reach download speeds much faster than 120 Mbps. It was advertised to be able to handle up to 1300 Mbps, but why does it only come up with 130 Mbps with my 5GHz band? Do I need to do additional tweaks on my computer to get at least 450 Mbps downloads? I'm running El Capitan.