Powered multi-port USB hubs use an external power source to provide power to connected peripherals while carrying data to a host device. They can support devices such as external drives, webcams, and smartboards, with the hub’s available power and ports determining what can be connected.

USB 3.0 multi-port USB hubs support data transfer rates up to 5 Gbps, making them suited to higher-bandwidth devices such as external hard drives and USB cameras. USB 2.0 hubs transfer data at slower rates and can connect devices such as webcams, Smartboards, and adapters where that speed meets the project’s needs.

Choose a four-port or seven-port multi-port USB hub based on how many cameras, external drives, adapters, and other peripherals you plan to connect at once. A powered hub can help supply power to connected devices, while a higher port count leaves room for additional peripherals.

Check that the hub’s USB standard and connector match your computer, and that it has enough ports for your connected devices. Confirm the hub’s power supply can support devices that need external power, and check that its data-transfer capability suits peripherals such as external drives, cameras, and adapters.