USB 1.1, 2.0, 3.0

USB to 1 x RS-232 port with 1.8 meter cable (Prolific Chip)

USB to 1 x RS-232 ports Surge Protection & Opto Isolation

USB to 1 x RS-422/485 ports with 1.8 meter cable (FTDI Chip)

USB 2.0 Dock station w LAN and 2xUSB2.0+1xserial RS-232+1xpar+2xPS/2 connectors

USB 1.1 to PS/2 for Mouse and Keyboard

USB 2.0 Dock station w VGA and 3xUSB2.0+1xserial RS-232+1xpar+2xPS/2 connectors

USB 2.0 to Ethernet

USB to 1S Serial RS-232 ports (Prolific Chip-Set)

USB to 2S Serial RS-232 ports (Prolific Chip-Set)

USB screw lock to 4S Serial RS-232 ports (FTDI Chip)