Network switch from Cisco, 48 Gigabit ports. Supports POE+ so you can power cameras and access points directly from the device. 2 power supplies, so it supports operation from two power sources for reliability and uninterrupted continuity. The device is professional, and whoever wants to know more about the specifications and technical capabilities of the switch can review the specifications on the company's website. Model number ws-c3850-48f-s. Price is open for offers, and serious buyers will be pleased.