Apple M8881LL/A AirPort Extreme Card<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Exchange files or play multiplayer games at data transfer rates of up to 54 Mbps </span></li><li><span class="a-list-item"> Compatible with the industry-standard 802.11b wireless networking protocol </span></li><li><span class="a-list-item"> Range of up to 50 feet at 54 Mbps and up to 150 feet at 11 Mbps </span></li><li><span class="a-list-item"> Join any of the thousands of Wi-Fi certified 802.11b wireless "hot spots" that are currently running in coffeehouses， bookstores， and airports </span></li><li><span class="a-list-item"> 128-bit WEP encryption for secure connections </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/419H25BWQVL.jpg" noproxy>