APPLE AirPort Extreme - AirPort is the wireless networking technology that gets you on the Internet from practically anywhere - without cables, additional phone lines, or complex networking hardware. With AirPort Extreme enabled Macintosh systems, it"s a snap to exchange files or play multiplayer games, using cutting edge 802.11g wireless technology, at up to 54 megabits per second! Because AirPort Extreme uses radio waves for communication, it even works through walls!

REVIEWS:
1) Painless installation: I purchased this card for a first generation 20" iMac G5. Installation is simple: release three captive screws at the bottom of the iMac, remove the back cover and pedestal, and insert the card into the retainer cage. The card plugs into a socket, plus it has an antenna cable. That"s all there is to it.

Once rebooted, the machine will automatically detect the card but it will not turn on wireless networking. If you are ready to connect to a network then it takes maybe a minute or two to turn it on and pick the wireless access point.

The iMac is now at the opposite side of the house (brick, steel, concrete condo) and wireless performance with the D-Link WBR-1310 is great.

Most new Macs already have an airport card, so this product is primarily aimed at people that own slightly older Macs with a built-in airport socket/cage. The price is really good, these cards retailed for $79 when they originally came out. And once you plug it in, it works forever, I am yet to run into somebody that has had an airport extreme card fail, not even DOA.
2) Apple Airport Extreme Card: I just installed the Airport Extreme Card on my eMac and have moved the computer as far away from the router as it can possibly be in my house. The signal is very strong and it is working great. Highly recommend this product.
3) very not satisfied: very very not user friendly.... no instruction to install. worked after it got installed but doesnt work with the wireless internet in my house. Decided to resell it. could be its only because i"m apple-illeterate....
4) A Piece of cake to install, this thing works great: Apple products have been consistently solid for me, and this one is no exception. I simply opened the side of my mac, plugged the card in, and when I turned the computer back on I was browsing the web wirelessly. Could not have been easier.
5) Apple Air Port Extreme Card: Love the apple airprot extreme card. We set up wireless networking in our home and my mac is downstairs I have super fast speed