For those who rely on a wireless network to browse the Internet and check e-mail, an occasional lack of speed is tolerable, but the inability to connect throughout your home is not. There's often at least one dead spot in your abode-whether it's in the living room, where you like to surf the Web while you channel surf, or in that corner of the kitchen where the kids like to do their homework while instant messaging.
 
You could buy a whole new 802.11n router that offers much better range, but those are expensive and require a matching PC Card to get the best performance. Plus, not everyone has time to create a new home network from scratch. These products let you improve your existing router's wireless range by boosting its signal or rebroadcasting it. In most cases, all that's required is plugging an antenna or extender into your router and running an installation application. Here's how these upgrades stack up.