Apple has quietly introduced a new AirPort Extreme Base Station with Power over Ethernet and UL 2043 certification for US$249. Power over Ethernet, which is based on the IEEE 802.3af standard, allows wireless network administrators to run both data and power through an Ethernet cable. UL 2043 is a safety standard from the Underwriters Laboratories, who have deemed this product safe to use in air-handling spaces such as above ceiling tiles.