S1518-16P: S1518-16P1000M BDCOM 16Port PoE Giga and 2Port GE SFP RM Switch (16 1000M PoE ports, 2 GE SFP ports, integrated AC220V power supply, 240W PoE power, rack-mounted installation) Multifunctional PoE Switch Two GE SFP ports and sixteen GE PoE ports Integrated AC power source A working dip switch Standard working mode by default Extension of CCTV--1-8 port