This specification has expected multi-station WLAN throughput of at least 1 gigabit per second and a single link throughput of at least 500 megabits per second (500 Mbit/s).
Utilizing the same chipset and drivers as the new MacBook Air/Pro model, this new PCIe card can be used to upgrade PCIe Mac models to the newly announced WiFi standard of 802.11ac! Some installation required. Compatible with OS 10.8.4 or greater.
All you have to do is take the old AirPort card out and put the new one in. As long as you have an OS of 10.8.4 or greater, your PCIe Mac will recognize it instantly, giving you access to 802.11AC speeds at any compatible wireless access point.
If you are somewhere that doesn't have a wireless access point in the AC spectrum, don't worry. The QCard is fully backwards compatible, allowing you to connect to any Wifi network.
There are two versions of the Qcard: a two port for the MacBook Air and the three port for the MacBook Pro.
V1- 2 Port Size: 39.9 mm x 18.07 mm
V2 - 3 Port Size: 46 mm x 18.5 mm