Ports   16-port 10/100/1000Mbps  Media interfaces RJ45  Switching features 16 10/100/1000Mbps RJ45 ports   Innovative energy-efficient technology saves power up to 40%   Supports MAC address self-learning and auto MDI/MDIX   Standard 19-inch rack-mountable steel case     Power Supply External Power Supply Input: 100~240VAC, 50/60Hz Output: 12VDC/2.0A