gretzky999,  That can vary with how many antenna wires your system has and you home network.  I have used the Intel 5100 and had good results. The Intel 5300 should also have good results. Both work on 2.4GHz and 5.0GHz  If you don't like the Intel adapters, the Dell Wireless 1520 (11agn) WLAN Half-Height mini-Card works on 2.4GHz and 5.0GHz.   The Dell Wireless 1501 Wireless-N WLAN Half-Mini Card works on 2.4GHz ONLY but uses dual streams, giving the wireless N speeds.  Some adapters use 2 wires and some use 3 wires. It also depends on your operating system because of locating drivers and some adapters are do not have drivers for some operating systems.   Rick
Good morning! My problem is getting a bit annoying already. I have tried every possible ways to solve it, maybe you can help me.  I have a Dell Studio XPS 1645 laptop, which contains Dell 1397 wlan mini-card, manufactured by Broadcom. It has some problems with connecting networks. Either it is not connecting at all, or it is, but very slow. I mean, i have 30mbps internet here, which i can use with cable, but with wireless it can reach only 20mbps. I have tried many other networks, all the same problems. I have Windows 7 64bit os. I tried every possible drivers, i hope, you can find me the right one.  Thanks
Studio XPS 1645 Wireless Problem