8-Port Industrial USB to RS-232 Serial Adapter Hub Adds 8 high speed RS232 serial RJ-45 port to a PC or Mac computer via USB port with this plug-and-play adapter hub SIIG’s 8-Port Industrial USB to RS-232 Serial Adapter Hub is a professional grade USB plug-and-play adapter hub designed to add 8 high speed RS-232 serial ports to desktop or notebook computers. This professional grade USB to serial adapter hub supports USB 2.0 data transfer rates up to 480Mb/s and serial port data transfer rates up to 921.6 Kb/s. It features built-in 512 byte FIFO buffer, software flow control, and 15KV DC ESD serial interface protection. The 8-Port Industrial USB to RS-232 Serial Adapter Hub is the smart solution for connecting professional grade RS-232 serial devices such as modems, ISDN terminal adapters, PDAs, bar code scanners, label printers, and more. It is compliant with USB specification, revision 2.0, comes with FCC and CE regulatory approvals, and meets RoHS hazardous materials standards. Additionally, it is compatible with a wide variety of Windows and Mac operating systems and is backed by SIIG’s limited 3-year warranty. Features - Supports serial port data transfer rates up to 921.6Kb/s - Includes space-saving RJ45-to-DB9 (9-Pin) serial cable - Built in 15KVDC ESD serial interface protection - Supports USB 2.0 high speed data transfer rates up to 480Mb/s - Built in 512 byte FIFO buffer and software flow control - Powered by USB bus, no external power needed