ASUS USB-AC55 Dual-Band Wireless-AC1300 USB 3.0 Wi-Fi Adapter $14.39 AR/AC/FS @ newegg.com

found this to b cheep for dual band and usb3.0 Link
42.99
- 8.60 -20% – 0125PBCS05
- 20 rebate
14.39 free shipping
Item #: N82E16833320216
Specs Return Policy
Model
Brand ASUS
Model USB-AC55
Details
Standards IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11ac, IPv4
Wireless Data Rates 802.11a : 6,9,12,18,24,36,48,54 Mbps 802.11b : 1, 2, 5.5, 11 Mbps 802.11g : 6,9,12,18,24,36,48,54 Mbps 802.11n : up to 400 Mbps 802.11ac: up to 867 Mbps
Security 64-bit WEP, 128-bit WEP, WPA2-PSK, WPA-PSK, WPS support
Interface USB 3.0
Frequency Band 2.4 GHz / 5 GHz
LEDs WAN x 1
Antenna Internal antenna x 2
System Requirements Windows 8.1 Windows 8 Windows 7
Feature
Features 5th generation 802.11ac chipset gives you dual-band 2.4 GHz / 5 GHz for up to super-fast 867 Mbps 256QAM technology increases wireless-N data rate from 300 Mbps to 400 Mbps for 33% faster performance Selectable 5 GHz /2 .4 GHz dual bands increase signal clarity for better HD multimedia USB 3.0 connection for high-performance wireless networking with desktop and notebook PCs
Dimensions & Weight
Dimensions 0.43" x 1.09" x 3.78" (H x W x L)
Weight 0.01 lbs.
Packaging
Package Contents USB-AC55 Dual-band wireless-AC1300 adapter Support CD (Driver and Utility) Quick Start Guide Warranty Card USB 3.0 cradle(varies with region)