recommended 802.11n adapter to buy as AP on 10.0-R

[Peter Lai]

I'm looking to get a new wifi adapter which will be plugged into an
Atom D2550 board, so it can be either pci-e x1 or usb3.

The adapter needs to run as a single access point to support phones
and tablets (iphone 4S only does n at 2.4ghz though). The box is
running FreeBSD 10.0-RELEASE-p7 amd64.

Can anyone throw out some least-hassle favorite cards for me to consider?

Thanks