Buy on Amazon : http://www.amazon.com/gp/product/B00AOBXK9S?tag=catfoodrevi0a-20 <br /> <br />WildPackets OmniWiFi USB WLAN Capture Adapter (802.11a/b/g/n - Dualband) <br /> <br />USB device qualified for use with WildPackets OmniPeek and OmniEngine product lines supported drivers available with OmniPeek products - sold separately <br />Dualband operation - can capture wireless packet data in both the 24GHz and 5GHz bands <br />Captures wireless packet data on all standard international 80211 channels abgn <br />Supports 80211n captures up to 3 transmitreceive streams 450Mbps wireless traffic <br />Supports 80211n 20MHz and 40MHz channel operation
