Linksys Dual-Band AC1200 Wireless USB3 Adapter $45 @ Playtech.co.nz (Was $99)

Seems to be a good deal, over half price.

Next Generation Wireless Technology
Connect and upgrade your laptop or desktop computers to the newest, most powerful wireless-AC technology.
Ultimate Wireless Speed and the Power of Dual-Band
Up to 867 Mbps speed on Wireless-AC 5 GHz band or up to 300 Mbps speed* on Wireless-N 2.4 GHz band
HD Video and Gaming Ready
Stream HD video and online gaming simultaneously throughout your home.
Peformance Investment Protection
Compatibility with Wireless-A (802.11a), Wireless-B (802.11b), Wireless-G (802.11g), Wireless-N (802.11n) and Wireless-AC (802.11ac) Wi-Fi Standards.