Simple fast and smart managed switches for small business connectivity the zyxel gs1900 series of 8162448 port gbe smart managed switch with gigabit speed and essential managing functions bring your business network more fexibility and connectivity the 1900 series consists of eight 8 modelsthe gs1900 8 gs1900 8hp gs1900 16 gs1900 24e gs1900 24 gs1900 24hp gs1900 48 and gs1900 48hp providing gbe switches with powersaving functions fanless design and full ipv6 support ensure