Apple USB Ethernet Adapter (MC704LL/A)
<div style="text-align: left;"><strong>[Product Information]</strong>
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<li><span class="a-list-item"> Small and light， it connects to the USB 2.0 port of your MacBook Air and provides an RJ-45 connector that supports 10/100BASE-T performance. </span></li>
<li><span class="a-list-item"> 4.6 inch USB cable </span></li>
<li><span class="a-list-item"> Requires Mac OS X v.10.4.8 or later and an available USB 2.0 port </span></li>
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<img src="http://ecx.images-amazon.com/images/I/31thmnrcaJL.jpg" noproxy>