ATEN US421A USB 2.0 4-Port Switch

Keep four computers connected to the same USB peripherals with a compact switch built for shared workstations. The ATEN US421A lets users move a keyboard, mouse, printer, scanner, or other USB device between systems without physically reconnecting cables. That means fewer interruptions, less desk clutter, and less wear on host ports in environments where multiple PCs need the same peripheral set. Designed for USB 2.0 connectivity, the US421A supports data transfer rates up to 480 Mb/s, making it suitable for everyday peripheral sharing where speed and reliability matter more than extra complexity. Its external form factor keeps deployment simple on or under the desk, and the compact footprint makes it easy to place in tight work areas. For IT teams standardizing shared-access workstations, this switch offers a practical way to reduce duplicate peripherals and simplify user workflows. It is a strong fit for control rooms, lab benches, administrative desks, and support stations where multiple systems must share the same USB devices with minimal friction.