Network switches come in two different flavors: managed, where you have some interface to configure and monitor the equipment, and unmanaged ... on the switch via the USB port.
DS-3E0326P-E is an 24 10/100Mbps ports unmanaged switch that requires no configuration and provides 24 PoE (Power over Ethernet) ports. It can automatically detect and supply power with all IEEE ...
Hikvision DS-3E1526P-EI 24 Port Gigabit Smart POE Switch Hikvision DS-3E0518P-E/M 16 Port Gigabit Unmanaged POE Switch Hikvision DS-3E1526P-E 24 Port Gigabit Web POE Switch New Smart Managed Switches ...
On top of that, they're relatively inexpensive too. You can get a five-port unmanaged switch for as little as $20 and even cheaper in some instances.