Apple USB Ethernet Adapter, MC704
Easily connect your Mac computer to an Ethernet network with the Apple USB Ethernet Adapter. Small and light, it connects to the USB 2.0 port of your Mac and provides an RJ-45 connector that supports 10/100BASE-T performance.
What’s in the Box: Apple USB Ethernet Adapter with built-in 4.6-inch USB cable, User’s Guide
Tech Specs Connections: 10/100 Base-T Ethernet, USB 2
System Requirements: Mac OS X v.10.4.8 or later, Mac computer with available USB 2.0 port