Ok, I have noticed that some manufacturers claim a ridiculously high power output for some devices making it hard for the consumer to really know what they are getting. ALFA devices claim to have a maximum of 2000mW and Kasens have some that are 6000mW. Here is a video between 2 different RTL8187L devices. Test just compares the RF power output. You would think a device that is claimed to be 200mW more to be better. YouTube VideoWatch this video on YouTube. Test was conducted with a 5011 REDOT Digital 2.4G WIFI Power & SWR device which has a maximum 33 dBm. SignalKing 160000g (Claimed 1200mW) achieved 28dBm TX power and 4857 kb/s on Speedtest.net ALFA AWUS036H (1000mW) achieved 31dBm TX power and 4936 kb/s on Speedtest.net 28dBm = 630.95mW 31dBm = 1258.92mW dBm = log10 (mW)*10 mW =10^(dBm/10) As you can see the SignalKing falls very short of its claim while the ALFA performs better than their rating of 1000mW. Conclusion of the story, do not buy a card just on the basis of high milliwatts (mW). I have complete faith in ALFA. Some companies try to deceive their customers and do you really want to buy something from a company that does that? Here at Xiaopan we want to test, compare and recommend the best cards on the market and you will see some really big changes soon. Sure the SignalKing works, but if I bought a car that claims to go 300km/h and only does 200km/h I would be very annoyed . So to the ALFA bashers, where are your tests?