[Image: A device labeled &#39;LINKSYS(R) 5-Port Workgroup Hub&#39; with several indicator LEDs, labeled &#39;Link/Activity&#39; (5 indicators, 1 lit green), &#39;Collision&#39; (unlit), and &#39;Power&#39; (lit green). The device is connected to a battery holder with VARTA AA-sized batteries, and to an Ethernet cable going outside of the picture.]