Hello, I own a RB2011UAS-2HnD-IN (RouterOS 6.4), it lacks the 802.11a/n but it features 802.11b/g/n, I want to make it dual band, since it lacks mini pci, the only viable option is USB, does anyone know a working USB wireless card?
I think it must be: Atheros and USB, any compatible one?
Thank you in advice
usb wifi
http://wiki.mikrotik.com/wiki/Supported_Hardware#USB_wireless_cards
edit: nothing is 802.11a 
Try to find - Atheros wifi card - USB
Found this expensive card, I would prefer to buy a cheap 5.8 AP instead of this: (ATHEROS) http://www.amazon.com/AirLive-X-USB-802-11a-USB-adapter/dp/B006OJ4B1K/ref=sr_1_10?ie=UTF8&qid=1380576041&sr=8-10&keywords=airlive