Alfa 1000mW Wireless USB WiFi Network Adapter – Grey

Compatible with IEEE 802.11n, 802.11b/g/n wireless standards
2.4GHz frequency band
Complies with Universal Serial Bus Rev. 2.0 specifications
High speed transfer TX data rate up to 150 Mbps
Supports wireless data encryption with 64/128-bit WEP, WPA, WPA2, TKIP, AES

The AWUS036H saw more signals, and had stronger reception to common signals that were 802.11g standard. The AWUS036H is only 802.11g standard though, whereas this AWUS036NHA is 802.11n standard and offers faster speeds when used with 802.11n standard access points. For example, at 100% signal with both products, video streaming via YouTube was faster with the AWUS036NHA connected to our 802.11n 150 mbps router than with the AWUS036H connected to the same router. Because 802.11n is a newer standard, many of the access points around you (in neighborhoods or places you travel) will still be 802.11g. If you are trying to decide between the AWUS036H and the AWUS036NHA, what it boils down to is how you want to use the product. If you plan on using mostly with 802.11g signals and are trying to get the strongest signals and cover the greatest distance, the AWUS036H is the best option.