The Animal Cage Camera (ACC) operates with our Videoarchiver to provide video that is synchronous with telemetry data to within ±100 ms. We know of no other camera capable of sustaining such close synchronization continuously for months at a time. The ACC's wide-angle lense can view an entire animal cage when pressed up against the cage wall. The camera is easy to deploy because it requires only one network cable for power and communcation: it runs entirely off industry-standard Power-over-Ethernet (PoE) device. The ACC provides white and infra-read illumination, and the Videoarchiver's scheduler allows us to brighten and dim the white and infra-read lights on a twenty-four hour cycle. Commercial webcams provide synchronization of no better than ±60 s per day, are equipped with lenses far inferior to those deployed in the ACC, and produce video files that are either excessively large or degraded by inferior compression. The great advantage of commercial webcams is that they are inexpensive. If you prefer to use a commercial webcam, we recommend the M7D77-PoE, which we have tested for compatibility with our telemetry system.