The StarTech.com ICUSB2324 USB to RS232 Serial Adapter Hub lets you connect up to four RS232 serial devices such as modems, GPS receivers and scanners to your desktop computer, Mac or laptop through a single USB port. With a maximum transfer data rate of 115.2 Kbps, this compact adapter hub is a cost-effective solution that bridges the compatibility gap between modern USB-capable computers and legacy RS232 serial peripherals. As it is bus powered, an external power adapter is not required. The StarTech.com ICUSB2324 USB to RS232 Serial Adapter Hub supports wakeup and power management modes and can be used to program LED and digital signage boards with serial communication ports. Installing the 4-port serial USB adapter is easy with its plug-and-play installation.