The ATEN USB-to-Serial RS-232 Hub is a plug-and-play device that enables computers, laptops, and handheld devices to easily connect to RS-232 serial ports. It supports up to 115.2 Kbps data transfer per port, is compatible with USB 1.1 and 2.0, and works well for communication and automation applications. The hub includes built-in ESD protection and supports both bus and external power.