The ICUSB232 feetN ftDI USB to Null Modem Serial Adaptor Cable (1-Port) converts an available USB 1.1 or 2.0 port into an RS232 Null Modem serial DB9 port, solving DCE/DTE conflicts directly, without requiring additional cross-wired serial cables or adapters. This compact Adaptor features COM retention, allowing the same COM port value to automatically be re-assigned to the port if the cable is disconnected and re-connected to the host computer, or if the system is rebooted. The integrated ftDI chipset supports additional customization, advanced features, and compatibility not necessarily offered by other solutions. The USB to Null Modem Adaptor is compatible with a broad list of operating systems including Windows, Windows CE, Mac OS and Linux, making it easier to integrate into mixed environments. Backed by a StarTech.com 2-year warranty and free lifetime technical support. USB to Null Modem serial Adaptor corrects DTE/DCE conflicts without requiring additional adapters or cables. The ftDI chipset is highly customizable and broadly compatible, making it the ideal solution for any setup. Portable USB-Powered design requires no bulky power Adaptor or outlet. Perfect for IT Administrators looking to add legacy functionality to newer notebooks, PCs and servers that lack an integrated RS232 port. Connect, monitor and control industrial/automotive sensors and equipment. Connect bar code scanners, receipt printers and other point of sale devices. Connect and program LED and Digital signage boards with serial communication ports. Connect a satellite receiver, serial modem, or PDU.