The zyxel gs1900 series of 48 port gbe smart managed switch with gigabit speed and essential managing functions bring your business network more flexibility and connectivity providing gbe switches with power saving functions fanless design and full ipv6 support ensure your network to be ready for future expansions in addition the poe models gs1900 48hp gigabit switch complies with the ieee 8023at power over ethernet poe plus standard the complete gs1900 series has been designed with usef