Q: AirPort Extreme eMac

I think ordinal Airport Card works.

eMac: How to install or replace an optional Airport Card:

http://support.apple.com/kb/HT2596?viewlocale=en_US

Airport Exreme card: Compatible Macs:

http://support.apple.com/kb/HT3024

Airport Card:

http://www.amazon.com/Original-Apple-Airport-WiFi-iBook/dp/B004ZI3NPC/ref=cm_cr_ pr_product_top

Don't order just yet.

The first eMacs used original Airport cards; later models used Airport Extreme. It's important to preciesly identify your eMac variant before buying a card that may not work. If yours is a 1gHz model you probably need the Extreme card, not the "original" linked in the other post.

Use this Apple article that lets you look up your eMac variant by serial number:

http://support.apple.com/kb/HT2395

In the chart in the article, only the eMacs in the bottom section of the chart use the original Airport card. A 1Ghz eMac is most likely the "eMac (ATI Graphics)." Although rare, there were also some "eMac (USB 2.0)" models build only for the education market with 1ghz processors instead of the more common 1.25ghz processor.

So don't go buy an "original' Aiprort card until you figure out your exact eMac model.

Also to note, original Airport card cannot connect using WPA2, only WEP or WPA.

Another possibility...

http://x704.net/bbs/viewtopic.php?f=17&t=6670&p=81613&hilit=edimax#p81613

Excellent news about the Airport card!

The ATI Graphics eMac has a Max RAM of 1GB (with two 512MB modules). I've bought all my Mac RAM from this vendor for at least a decade:

http://eshop.macsales.com/MyOWC/Upgrades.cfm?sort=pop&model=181&type=Memory

Note well that they recommend PC133 RAM even though the USB1.1 eMacs like yours have only a 100mhz bus speed. Apparently, timing on some component is such that PC100 RAM--which logic says should work--can cause problems in early eMacs.

We don't know where you are exactly (these are international forums so have a "wide" userbase to say the least!). OWC is a US firm but ships to a number of overseas destinations. If you are not in N. America, check the OWC site to see if your home country is among those they service.

If you are not in N. America, let us know and maybe someone has an idea of a better RAM vendor for you. In some countries, duty charges and VAT can make the OWC offering less of a bargain than they are for N. American shoppers.

AJ