Examples of devices that accept both 802.3af and Cisco power: Examples of devices that only accept 802.3af power: The presence of a gigabit Ethernet port on a powered device is a clear indicator that the device is 802.3af only. Because of the relative newness of PoE+, few devices require this level of power.
BHT or butyl hydroxytoluene is a fat soluble synthetic compound which is commonly used to preserve foods and cosmetics to slow down the autoxidation rate of ingredients in a product that can cause changes in the taste or colour.
It has been the subject of many studies, which have been contradictory in their findings. The result is that we are left with confusion over whether consuming and applying products containing BHT is safe. This confusion is nothing new, as we can see from the following excerpt from Business Week magazine back in 1995.