The AT-9000/28POE is a 28-port Gigabit managed switch with 24 fixed configuration 10/100/1000T ports and an additional 4 x 100/1000SFP and 10/100/1000T combo ports. This switch features dual power supplies and delivers Power over Ethernet Plus (PoE+) to support powered devices such as IP security cameras, VoIP phones, Wireless Access Points, Point of Sale (POS), access control and help points (intercoms, automatic doors, entry cards, keyless entry).