The Zyxel GS1900 Series offers 8/10/16/24/48-port GbE Smart Managed Switch with Gigabit speed and essential managing functions that bring flexibility and connectivity to your business network. The GS1900 Series provides power-saving functions and full IPv6 support to ensure your network to be ready for future expansions. In addition, the PoE models support the IEEE 802.3at providing a maximum of 30 watts per port. The smart fan and fanless designs of the GS1900 Series empower your networks with silent operation in your office.