Bus-powered and mains-powered hubs look alike and behave nothing alike. A bus-powered unit splits whatever the host port supplies, which is fine for a keyboard, mouse and flash drive and not enough for portable hard drives or charging a phone. Anything drawing real current needs its own adapter. Count the ports you use daily, then add one. See docking hubs, flash drives and cables.

USB hub arranged on a bright office desk with laptop, connected peripherals, external drive, notebook and workspace accessories.
USB Hubs for Workstations

Shop USB hubs for laptops, computers, extra ports, peripherals, charging and workspace connectivity.