I/O Devices

StarTech.com USB to Serial Adapter Hub - 4 Port - Industrial - Wall Mount - Din Rail - COM Port Retention - FTDI USB Serial - Add 4 DIN Rail-mountable RS232 Serial ports to any system through USB - 4 port usb serial adapter - 4 port usb to rs232 - USB to DB9 - USB to serial converter - USB to serial hub

StarTech.com USB to Serial Hub - 16 Port - COM Port Retention - Rack Mount and Daisy Chainable - FTDI USB to RS232 Hub - Convert a USB port into 16 RS232 serial ports in an industrial rack-mountable chassis, and daisy chain multiple hubs for a scalable solution - 16-Port USB-to-Serial Adapter Hub - USB to RS232 port adapter with FTDI chipset and COM port retention

StarTech.com USB to Serial Hub - 8 Port - COM Port Retention - Rack Mount and Daisy Chainable - FTDI USB to RS232 Hub - Convert a USB port into 8 RS232 serial ports in an industrial rack-mountable chassis, and daisy chain multiple hubs for a scalable solution - 8-Port USB-to-Serial Adapter Hub - USB to RS232 port adapter with FTDI chipset and COM port retention

Tripp Lite 2-Port DB9 RS232 PCI Serial Adapter Card Full Profile 16550 UART - Full-height Plug-in Card - PCI - PC, Linux - 2 x Number of Serial Ports External

Tripp Lite Keyspan High Speed 4 Port USB to DB9 Serial Adapter Hub - Serial DB9 to USB Adapter Hub

Tripp Lite USB to Serial Adapter Converter RS-422/RS-485 USB to DB9 1-Port - External - USB Type B - PC, Mac, Linux - 1 x Number of Serial Ports External

Tripp Lite USB to Serial Adapter Converter RS-422/RS-485 USB to DB9 2-Port - External - USB Type B - Linux, Mac, PC - 2 x Number of Serial Ports External

Tripp Lite USB to Serial Adapter Converter RS-422/RS-485 USB to DB9 4-Port - External - USB Type B - PC, Mac, Linux - 4 x Number of Serial Ports External